From ve3gem at gmail.com  Mon Jul  1 09:39:41 2024
From: ve3gem at gmail.com (Keith Densmore)
Date: Mon, 1 Jul 2024 09:39:41 -0400
Subject: [GreenKeys] Sperry Signal Analyzer
Message-ID: <CAC1vJYA-jxJqp9Dn4A7N91idVJ71T_7ggfOdG9VuK4P2gvL-rw@mail.gmail.com>

Greetings,
Here's an interesting item, anyone had experience with one and/or a guess
to its value? (available locally, as is).
Thanks,

Keith ve3gem
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From navy.radio at gmail.com  Mon Jul  1 11:40:52 2024
From: navy.radio at gmail.com (Nick England)
Date: Mon, 1 Jul 2024 11:40:52 -0400
Subject: [GreenKeys] Fwd:M15 Waterford MI. FTGH.
In-Reply-To: <239fe06c-37bd-11ef-9bb7-55ffad1606e3@facebookmail.com>
References: <7772118006144072-1128692923819980@groups.facebook.com>
	<239fe06c-37bd-11ef-9bb7-55ffad1606e3@facebookmail.com>
Message-ID: <CAB55hNcZoLenLUd2W1PZLMeVBL7WXjDbKM40UQpy7e5Mp4WwgQ@mail.gmail.com>

Waterford MI. FTGH.
Not mine, etc.

---------- Forwarded message ---------
From: Facebook <groupupdates at facebookmail.com>
Date: Mon, Jul 1, 2024 at 11:18 AM
Subject: Michael Joseph posted in Teletype Corp TTY RTTY machine
collectors, rebuilders, users
To: Teletype Corp TTY RTTY machine collectors, rebuilders, users <
1128692923819980 at groups.facebook.com>


See what he posted.

<https://www.facebook.com/nd/?groups%2F1128692923819980%2Fpermalink%2F7772118006144072%2F&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=f_logo_in_email&rms=v2&irms=1>
<https://www.facebook.com/nd/?messages&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=msg_badge_in_email&rms=v2&irms=1>
<https://www.facebook.com/nd/?notifications&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=notif_badge_in_email&rms=v2&irms=1>


<https://www.facebook.com/nd/?profile.php&id=100088641645657&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=author_pic&rms=v2&irms=1>
Michael Joseph
<https://www.facebook.com/nd/?profile.php&id=100088641645657&lloc=profile_link&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com>
posted in Teletype Corp TTY RTTY machine collectors, rebuilders, users
<https://www.facebook.com/nd/?groups%2F1128692923819980%2F&lloc=profile_link&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com>
July 1 at 11:01?AM
<https://www.facebook.com/nd/?groups%2F1128692923819980%2Fpermalink%2F7772118006144072%2F&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=post_timestamp&rms=v2&irms=1>

My mom passed away in April, and her partner who wa... See more
<https://www.facebook.com/nd/?groups%2F1128692923819980%2Fpermalink%2F7772118006144072%2F&aref=1719846101369620&medium=email&mid=61c30965ac042G5d2c85b3G61c30dff0c314G96&bcode=2.1719847095.AbwLonuDTR1QB1GScEk&n_m=nick%40virhistory.com&lloc=see_more&rms=v2&irms=1>
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1

View on Facebook
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From navy.radio at gmail.com  Mon Jul  1 12:31:59 2024
From: navy.radio at gmail.com (Nick England)
Date: Mon, 1 Jul 2024 12:31:59 -0400
Subject: [GreenKeys] FTGH M15 Waterford MI
Message-ID: <CAB55hNf2XXyFS2POp4BfOjBa4BvXzHY5Zx=xt9NvUUXNOe+oLQ@mail.gmail.com>

Oops, that forwarded message had a link to my Facebook account so it
probably didn?t work. Try going to the Facebook TTY group link which I
think is
https://facebook.com/groups/1128692923819980/

I find Facebook a confusing mess and try to avoid it.

Nick England K4NYW
www.navy-radio.com
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From duncanancy at earthlink.net  Mon Jul  1 12:34:16 2024
From: duncanancy at earthlink.net (Duncan Brown)
Date: Mon, 1 Jul 2024 12:34:16 -0400
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
Message-ID: <011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>

Jomar,

Any AFSK converter (aka "Terminal Unit") made for amateur radio will 
work, eg. HAL, Dovetron, Flesher, etc and most will include the loop 
supply. (Older tube type and military units may only do 850 Hz shift; 
ITTY is 170 Hz shift.)

You can build a simple AFSK demodulator with a 2211 chip and an 
optocoupler interface - schematic enclosed.

Loop supply just needs 100-150 VDC source that can supply 60ma; plus a 
current limiting resistor. No regulation is required. Often old teletype 
supplies can be found, but they may contain selenium rectifiers which 
should be replaced with silicon rectifiers. (Selenium can put off 
poisonous gas when abused)

Good luck & Have fun,

Duncan
K2OEQ

On 6/30/2024 10:05 PM, Jomar Quilatan wrote:
> Hi all,
>
> So after a partial restoration of my model 26 (mostly cleaning and 
> de-gunking), I've been able to get it to at least code keyboard inputs 
> correctly (after giving it a moment to warm up...still will gradually 
> free up all the related parts) and fixed a carriage return issue 
> simply by increasing tension (thanks to a fellow person on this forum 
> for suggesting that fix).
>
> Now I'm on to the next part - getting stuff to be sent to my unit.
>
> Is there a rudimentary assembly that can be put together or bought to 
> interface external text sources, ITTY, etc with the Teletype (similar 
> to my temporary workaround of a 9V battery as my loop current), or is 
> this where having amateur radio gear / knowledge will come in (aka the 
> sky's the limit)?? In other words, what could be the next natural step 
> to take with this machine?
>
> Looking forward to your input.
> Regards,
>
> *Jomar (Joshua Martin)?Quilatan*
> Mississauga (Toronto), Canada
> RA?0-8045
>
> ______________________________________________________________
> GreenKeys mailing list
> Home:http://mailman.qth.net/mailman/listinfo/greenkeys
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:http://comcents.com/tty/greenkeyssearch.html
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
> Message delivered toduncanancy at earthlink.net
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From abowman89 at yahoo.com  Mon Jul  1 13:24:45 2024
From: abowman89 at yahoo.com (abowman89)
Date: Mon, 01 Jul 2024 12:24:45 -0500
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
Message-ID: <1852706697.2814657.1719854694597@yahoo.com>

I personally use a hal st-5000 demodulator, and love it.? It's four wires to the back plugs to be able to run Itty from a laptop, phone, ect.? It has an internal loop supply and a plug on a relay to act like a motor stop.? I'm running my model 15 and 28 on it.? I leave it on all day when I'm off.? ? There are two on ebay right now and the manual is on goolgle to print off.? ?If you go that route email me and I'll help you get going.? ??? ? ? BowmanSent via the Samsung Galaxy S24+, an AT&T 5G smartphone
-------- Original message --------From: Duncan Brown <duncanancy at earthlink.net> Date: 7/1/24  11:35 AM  (GMT-06:00) To: greenkeys at mailman.qth.net Subject: Re: [GreenKeys] Interfacing with the teletype...for newbies [M26 newbie, part 2] 
    Jomar,
    
    Any AFSK converter (aka "Terminal Unit") made for amateur radio will
    work, eg. HAL, Dovetron, Flesher, etc and most will include the loop
    supply. (Older tube type and military units may only do 850 Hz
    shift; ITTY is 170 Hz shift.)
    
    You can build a simple AFSK demodulator with a 2211 chip and an
    optocoupler interface - schematic enclosed.
    
    Loop supply just needs 100-150 VDC source that can supply 60ma; plus
    a current limiting resistor. No regulation is required. Often old
    teletype supplies can be found, but they may contain selenium
    rectifiers which should be replaced with silicon rectifiers.
    (Selenium can put off poisonous gas when abused)
    
    Good luck & Have fun,
    
    Duncan
    K2OEQ
    
    On 6/30/2024 10:05 PM, Jomar Quilatan
      wrote:
    
    
      
      
        Hi all,
        
        
        So after a partial restoration of my model 26 (mostly
          cleaning and de-gunking), I've been able to get it to at least
          code keyboard inputs correctly (after giving it a moment to
          warm up...still will gradually free up all the related parts)
          and fixed a carriage return issue simply by increasing tension
          (thanks to a fellow person on this forum for suggesting that
          fix).
        
        
        Now I'm on to the next part - getting stuff to be sent to
          my unit.
        
        
        Is there a rudimentary assembly that can be put together or
          bought to interface external text sources, ITTY, etc with the
          Teletype (similar to my temporary workaround of a 9V battery
          as my loop current), or is this where having amateur radio
          gear / knowledge will come in (aka the sky's the limit)?? In
          other words, what could be the next natural step to take with
          this machine?
        
        
        Looking forward to your input.
        Regards,
        
        
          
            
              
                Jomar?(Joshua Martin)?Quilatan
                  
                  Mississauga
                      (Toronto), Canada
                  
                    RA?0-8045
                  
                
              
            
          
        
      
      
      
      ______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net


      
        
          
            Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html

          
        
      
      This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to duncanancy at earthlink.net
    
    
  

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From harold at w6iwi.org  Mon Jul  1 13:31:27 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Mon, 1 Jul 2024 10:31:27 -0700
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
	<011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
Message-ID: <8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>

I agree that the very inexpensive terminal units on eBay and the XR2211
circuit will do the job. I used the XR2211 in several products I designed
in the late 1970s and 1980s. Very nice chip!

If you'd like to try some surface mount soldering, you could try my DSP TU
( https://w6iwi.org/rtty/DspTU2/ ). I have a few bare boards that could be
free to a good home. I use it on the air daily. I'm working on the WiFi
code so it can copy ITTY without an external computer.

Harold
https://w6iwi.org


From gblock at sbcglobal.net  Mon Jul  1 19:07:31 2024
From: gblock at sbcglobal.net (Gerry Block)
Date: Mon, 1 Jul 2024 23:07:31 +0000 (UTC)
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
	<011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
	<8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>
Message-ID: <1559332676.7943.1719875251661@mail.yahoo.com>

 Harold I am admiring from afar the work you have done on your TU.
I don't know what method you are using to actually solder the flatpack.??
The 'easy' way is to place the package and tack solder two corner pins till it is where you want it.
Then flood one row of pins at a time with liquid flux
Drag a loaded soldering iron tip across the pins.? You can do an entire row in about 5 seconds.
Metcal used to even make a special tip with a small solder reservoir in the end (i.e. a hole) for this purpose...
RegardsGerry Block
    On Monday, July 1, 2024 at 10:31:57 AM PDT, Harold Hallikainen via GreenKeys <greenkeys at mailman.qth.net> wrote:  
 
 I agree that the very inexpensive terminal units on eBay and the XR2211
circuit will do the job. I used the XR2211 in several products I designed
in the late 1970s and 1980s. Very nice chip!

If you'd like to try some surface mount soldering, you could try my DSP TU
( https://w6iwi.org/rtty/DspTU2/ ). I have a few bare boards that could be
free to a good home. I use it on the air daily. I'm working on the WiFi
code so it can copy ITTY without an external computer.

Harold
https://w6iwi.org

______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to gblock at sbcglobal.net
  
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From harold at w6iwi.org  Mon Jul  1 19:22:52 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Mon, 1 Jul 2024 16:22:52 -0700
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <1559332676.7943.1719875251661@mail.yahoo.com>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
	<011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
	<8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>
	<1559332676.7943.1719875251661@mail.yahoo.com>
Message-ID: <92bfdd5767864b8f8ba227867e2bab4f.squirrel@hallikainen.org>

Thanks! As noted at
https://w6iwi.org/rtty/DspTU2/#:~:text=current%20transmit%20state.-,PCB%20Bringup,-This%20project%20has
, I'm using a hot air soldering tool. I put a thin bead of solder paste
down along the rows of pads, then CAREFULLY position the chip. Under a
microscope, I shove the chip back and forth until all the pins are
centered on the pads. I then hit the whole chip with hot air (using a
"tip" that has a large square end that heats the whole chip at once).
There are typically a few shorts between some pins. Dragging a soldering
iron chip between the pins moving away from the chip body clears the
shorts. If there is too much solder to clear that way, solder wick pulls
away the excess solder.

I've now assembled two boards, one Rev A, and one rev B. Bill, KE3BK has
also assembled a Rev A board and has it working.

THANKS!

Harold


On Mon, July 1, 2024 4:07 pm, Gerry Block wrote:
>  Harold I am admiring from afar the work you have done on your TU.
> I don't know what method you are using to actually solder the
> flatpack.????
> The 'easy' way is to place the package and tack solder two corner pins
> till it is where you want it.
> Then flood one row of pins at a time with liquid flux
> Drag a loaded soldering iron tip across the pins.?? You can do an entire
> row in about 5 seconds.
> Metcal used to even make a special tip with a small solder reservoir in
> the end (i.e. a hole) for this purpose...
> RegardsGerry Block
>     On Monday, July 1, 2024 at 10:31:57 AM PDT, Harold Hallikainen via
> GreenKeys <greenkeys at mailman.qth.net> wrote:
>
>  I agree that the very inexpensive terminal units on eBay and the XR2211
> circuit will do the job. I used the XR2211 in several products I designed
> in the late 1970s and 1980s. Very nice chip!
>
> If you'd like to try some surface mount soldering, you could try my DSP TU
> ( https://w6iwi.org/rtty/DspTU2/ ). I have a few bare boards that could be
> free to a good home. I use it on the air daily. I'm working on the WiFi
> code so it can copy ITTY without an external computer.
>
> Harold
> https://w6iwi.org
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to gblock at sbcglobal.net
>


-- 
https://w6iwi.org

From gblock at sbcglobal.net  Mon Jul  1 21:14:56 2024
From: gblock at sbcglobal.net (Gerry Block)
Date: Tue, 2 Jul 2024 01:14:56 +0000 (UTC)
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <92bfdd5767864b8f8ba227867e2bab4f.squirrel@hallikainen.org>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
	<011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
	<8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>
	<1559332676.7943.1719875251661@mail.yahoo.com>
	<92bfdd5767864b8f8ba227867e2bab4f.squirrel@hallikainen.org>
Message-ID: <1437258448.4716.1719882896704@mail.yahoo.com>

 Sounds like you have it under control.
I'm sure Vic Poor could have used your talents back in the day.
Gerry
    On Monday, July 1, 2024 at 04:23:14 PM PDT, Harold Hallikainen via GreenKeys <greenkeys at mailman.qth.net> wrote:  
 
 Thanks! As noted at
https://w6iwi.org/rtty/DspTU2/#:~:text=current%20transmit%20state.-,PCB%20Bringup,-This%20project%20has
, I'm using a hot air soldering tool. I put a thin bead of solder paste
down along the rows of pads, then CAREFULLY position the chip. Under a
microscope, I shove the chip back and forth until all the pins are
centered on the pads. I then hit the whole chip with hot air (using a
"tip" that has a large square end that heats the whole chip at once).
There are typically a few shorts between some pins. Dragging a soldering
iron chip between the pins moving away from the chip body clears the
shorts. If there is too much solder to clear that way, solder wick pulls
away the excess solder.

I've now assembled two boards, one Rev A, and one rev B. Bill, KE3BK has
also assembled a Rev A board and has it working.

THANKS!

Harold


On Mon, July 1, 2024 4:07 pm, Gerry Block wrote:
>? Harold I am admiring from afar the work you have done on your TU.
> I don't know what method you are using to actually solder the
> flatpack.????
> The 'easy' way is to place the package and tack solder two corner pins
> till it is where you want it.
> Then flood one row of pins at a time with liquid flux
> Drag a loaded soldering iron tip across the pins.?? You can do an entire
> row in about 5 seconds.
> Metcal used to even make a special tip with a small solder reservoir in
> the end (i.e. a hole) for this purpose...
> RegardsGerry Block
>? ? On Monday, July 1, 2024 at 10:31:57 AM PDT, Harold Hallikainen via
> GreenKeys <greenkeys at mailman.qth.net> wrote:
>
>? I agree that the very inexpensive terminal units on eBay and the XR2211
> circuit will do the job. I used the XR2211 in several products I designed
> in the late 1970s and 1980s. Very nice chip!
>
> If you'd like to try some surface mount soldering, you could try my DSP TU
> ( https://w6iwi.org/rtty/DspTU2/ ). I have a few bare boards that could be
> free to a good home. I use it on the air daily. I'm working on the WiFi
> code so it can copy ITTY without an external computer.
>
> Harold
> https://w6iwi.org
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to gblock at sbcglobal.net
>


-- 
https://w6iwi.org
______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to gblock at sbcglobal.net
  
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From jeffg at junknet.net  Mon Jul  1 22:38:21 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Mon, 1 Jul 2024 22:38:21 -0400
Subject: [GreenKeys] Good news and...gooder news
Message-ID: <A8A7C090-8187-4AED-8DD5-D53A8D197980@junknet.net>

The Battleship NJ is back at the pier and hoping to reopen this week. The good news is the 28 asr/dometop in message handling seems to still be happy (it still needs a little clutch adjustment), and gooder news is I was wrong and the Harris radio I was using for RTTY is fine and next time Im at the ship (not this weekend) Im hoping to get her back on RTTY. Ill try to shoot out something here ahead of time so maybe we can give it a workout. I was there last weekend however the AC was working hard to cool her off but I could have baked cookies in message handling, and after helping move 5 urt-23 power supplies down a deck I think I lost 10lbs in 3 hours.

Better yet, we got a handful of urt-23 transmitters while we were in dry dock, so I guess my next projects include sorting out the (chopped up) transmitter switchboard so we can get at LEAST one of those up and running! The transmitter room is starting to fill out nicely!

Future projects because Im a serious glutton for punishment and you heard it here: by the end of the year, I want to do a torn tape message with Nick. This will involve reconnecting/fixing up the system enough to get it connected, and either connect the loops on asr #1 (75 baud) AND/OR...perhaps bring a crusty waterfall back from the dead. (They are in VERY rough shape). I need to bribe/ sweet talk the guy that does the mechanicals lol. (He has at least one printer unit I think). At a minimum, Im hoping to fix enough wiring to light them up again. Id love to find an LED warm-white replacement bulb for them (something that would work in any model 28).

Adult drinks may have been involved in this post, so take it with a grain of salt, but Im sticking to my goals. ;-)

Jeff KC3GJX and sometimes NJ2BB
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From harold at w6iwi.org  Mon Jul  1 23:04:16 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Mon, 1 Jul 2024 20:04:16 -0700
Subject: [GreenKeys] Interfacing with the teletype...for newbies [M26
 newbie, part 2]
In-Reply-To: <1437258448.4716.1719882896704@mail.yahoo.com>
References: <CAP5eFdfF=pYNO2Rg=68O8WsY+RJjDEu2ENO1HrbXqNHWx7zgfg@mail.gmail.com>
	<011160d9-426a-40d0-a78b-84e258ac7103@earthlink.net>
	<8324e82c0fb816b2af2ed033f57edbe1.squirrel@hallikainen.org>
	<1559332676.7943.1719875251661@mail.yahoo.com>
	<92bfdd5767864b8f8ba227867e2bab4f.squirrel@hallikainen.org>
	<1437258448.4716.1719882896704@mail.yahoo.com>
Message-ID: <0001f435b4409c919b3fa98081059def.squirrel@hallikainen.org>



On Mon, July 1, 2024 6:14 pm, Gerry Block wrote:
>  Sounds like you have it under control.
> I'm sure Vic Poor could have used your talents back in the day.
> Gerry

I dunno. Vic Poor was pretty amazing (
https://en.wikipedia.org/wiki/Victor_Poor ).

My first electronics experience was all vacuum tube stuff. In high school,
it was all vacuum tubes and a very little bit of transistors. In college,
it was all transistors, then small scale integrated circuits, then
microprocessors (the 4004, the 8008, then the 8080). I then designed a few
products using the MC6802. About 1995, I got started with PIC
microcontrollers and continued with them until retirement in 2021. In my
work after the year 2000, I did a LITTLE FPGA work. I worked with a DSP
consultant who would write the code for TI DSP chips and give me an SPI
interface to them so I could vary settings (filters and delays in audio
systems for cinema). But I never wrote any DSP code. The DSP TU is my way
of getting started in DSP. Similarly, at work we had a tech who could do
amazing things with SMT. If I needed a test point point on some pin of a
1200 pin BGA FPGA, he'd bring out a wire wrap wire for me to watch a
signal on. The DSP TU is the first SMT soldering I've done, the first
design I've done with KiCAD, etc. All fun stuff!

Retired and still learning!

Harold
https://w6iwi.org



-- 
https://w6iwi.org

From w2hx at w2hx.com  Tue Jul  2 15:27:06 2024
From: w2hx at w2hx.com (W2HX)
Date: Tue, 2 Jul 2024 19:27:06 +0000
Subject: [GreenKeys] Sperry Signal Analyzer
In-Reply-To: <CAC1vJYA-jxJqp9Dn4A7N91idVJ71T_7ggfOdG9VuK4P2gvL-rw@mail.gmail.com>
References: <CAC1vJYA-jxJqp9Dn4A7N91idVJ71T_7ggfOdG9VuK4P2gvL-rw@mail.gmail.com>
Message-ID: <BL1PR12MB5269845C5A5FEA14BFF9BD8AB5DC2@BL1PR12MB5269.namprd12.prod.outlook.com>

I use this regularly. I?ve only used the generation side of it, not the analysis side but I hope to. I would pay $50 for one, especially if it is local and no shipping costs would be incurred.


73 Eugene W2HX
My Youtube Channel: https://www.youtube.com/@w2hx/videos

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Keith Densmore
Sent: Monday, July 1, 2024 9:40 AM
To: Greenkeys <GreenKeys at mailman.qth.net>
Subject: [GreenKeys] Sperry Signal Analyzer

Greetings,
Here's an interesting item, anyone had experience with one and/or a guess to its value? (available locally, as is).
Thanks,

Keith ve3gem
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From jhhaynes at earthlink.net  Thu Jul  4 21:26:21 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Thu, 4 Jul 2024 20:26:21 -0500 (CDT)
Subject: [GreenKeys] W7TTY
Message-ID: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>


Haven't heard anything about him for quite a while.  Is he still living?

Jim W6JVE

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man

From scottjohnson1 at cox.net  Thu Jul  4 21:39:43 2024
From: scottjohnson1 at cox.net (scottjohnson1 at cox.net)
Date: Thu, 4 Jul 2024 18:39:43 -0700
Subject: [GreenKeys] W7TTY
In-Reply-To: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
References: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
Message-ID: <0a0001dace7c$36c86420$a4592c60$@cox.net>

According to QRZ, George is still in Sequim, WA  email w7tty at centurylink.net

Scott W7SVJ

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of Jim Haynes
Sent: Thursday, July 4, 2024 18:26
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] W7TTY


Haven't heard anything about him for quite a while.  Is he still living?

Jim W6JVE

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man
______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: 
>>> https://teletype.net/gksearch 2002-to-present greenkeys archive: 
>>> http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: 
>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: 
>>> http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message
delivered to scottjohnson1 at cox.net


From scottjohnson1 at cox.net  Thu Jul  4 21:41:34 2024
From: scottjohnson1 at cox.net (scottjohnson1 at cox.net)
Date: Thu, 4 Jul 2024 18:41:34 -0700
Subject: [GreenKeys] W7TTY
In-Reply-To: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
References: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
Message-ID: <0a0201dace7c$78ff3a30$6afdae90$@cox.net>

RTTY.COM has the whole story!

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of Jim Haynes
Sent: Thursday, July 4, 2024 18:26
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] W7TTY


Haven't heard anything about him for quite a while.  Is he still living?

Jim W6JVE

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man
______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: 
>>> https://teletype.net/gksearch 2002-to-present greenkeys archive: 
>>> http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: 
>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: 
>>> http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message
delivered to scottjohnson1 at cox.net


From harold at w6iwi.org  Thu Jul  4 21:42:13 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Thu, 4 Jul 2024 18:42:13 -0700
Subject: [GreenKeys] W7TTY
In-Reply-To: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
References: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
Message-ID: <b67d856cfea8186b7c450d0647b4ea09.squirrel@hallikainen.org>



On Thu, July 4, 2024 6:26 pm, Jim Haynes wrote:
>
> Haven't heard anything about him for quite a while.  Is he still living?
>
> Jim W6JVE

I don't know, but his license expired last September.
https://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=2547654

Harold
https://w6iwi.org


-- 
Not sent from an iPhone.

From gregorymengell at comcast.net  Fri Jul  5 02:04:57 2024
From: gregorymengell at comcast.net (Greg Mengell)
Date: Thu, 4 Jul 2024 23:04:57 -0700 (PDT)
Subject: [GreenKeys] W7TTY
In-Reply-To: <b67d856cfea8186b7c450d0647b4ea09.squirrel@hallikainen.org>
References: <57d0362-2087-b15-8d1e-e3c5c77c12f9@earthlink.net>
	<b67d856cfea8186b7c450d0647b4ea09.squirrel@hallikainen.org>
Message-ID: <1671486873.1101958.1720159497630@connect.xfinity.com>

I spoke with him a month ago but not since. I have not been able to contact him since then.
> On 07/04/2024 6:42 PM PDT Harold Hallikainen via GreenKeys <greenkeys at mailman.qth.net> wrote:
> 
>  
> On Thu, July 4, 2024 6:26 pm, Jim Haynes wrote:
> >
> > Haven't heard anything about him for quite a while.  Is he still living?
> >
> > Jim W6JVE
> 
> I don't know, but his license expired last September.
> https://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=2547654
> 
> Harold
> https://w6iwi.org
> 
> 
> -- 
> Not sent from an iPhone.
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to gregorymengell at comcast.net

From til128 at juno.com  Fri Jul  5 09:41:23 2024
From: til128 at juno.com (til128 at juno.com)
Date: Fri, 5 Jul 2024 13:41:23 GMT
Subject: [GreenKeys] No. 82 bulb replacement
Message-ID: <20240705.094123.2809.0@webmail11.dca.untd.com>

Hi all:
 
I seem to remember someone asking about an incandescent to LED replacement
for a mod28.
 
I found one here if still interested:
 
 https://tinyurl.com/527vw7by

Tom WB2TTY Tillson

From jeffg at junknet.net  Fri Jul  5 11:02:20 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 5 Jul 2024 11:02:20 -0400
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <20240705.094123.2809.0@webmail11.dca.untd.com>
References: <20240705.094123.2809.0@webmail11.dca.untd.com>
Message-ID: <343D84D9-4CF0-432D-A9BF-09A7DD68679F@junknet.net>

Thanks...I ordered some warm white to see how they look/work. They had 190+ in stock.

Jeff

> On Jul 5, 2024, at 9:43?AM, til128 at juno.com wrote:
> 
> ?Hi all:
> 
> I seem to remember someone asking about an incandescent to LED replacement
> for a mod28.
> 
> I found one here if still interested:
> 
> https://tinyurl.com/527vw7by
> 
> Tom WB2TTY Tillson
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net

From w9ddd at tapr.org  Fri Jul  5 11:04:00 2024
From: w9ddd at tapr.org (John, W9DDD)
Date: Fri, 5 Jul 2024 10:04:00 -0500
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <20240705.094123.2809.0@webmail11.dca.untd.com>
References: <20240705.094123.2809.0@webmail11.dca.untd.com>
Message-ID: <ad8e6d23-5abb-6bf9-8f97-6c8ddef1247f@tapr.org>

Which color temperature did you order?    I'm guessing warm white would 
be closest to incandescent.  Not too bad a price considering they will 
be the last ones you'll have to buy, hopefully.


On 7/5/2024 8:41 AM, til128 at juno.com wrote:
> Hi all:
>   
> I seem to remember someone asking about an incandescent to LED replacement
> for a mod28.
>   
> I found one here if still interested:
>   
>   https://tinyurl.com/527vw7by
>
> Tom WB2TTY Tillson
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to w9ddd at tapr.org

-- 
---
----
The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD


From jeffg at junknet.net  Fri Jul  5 11:59:54 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 5 Jul 2024 11:59:54 -0400
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <ad8e6d23-5abb-6bf9-8f97-6c8ddef1247f@tapr.org>
References: <ad8e6d23-5abb-6bf9-8f97-6c8ddef1247f@tapr.org>
Message-ID: <E00A3095-7DF7-4B82-BEC6-E8B5AD1FB93E@junknet.net>

I got the warm white, if they look/work decent I may get a handful and try to light up the waterfalls at the ship.

Jeff

> On Jul 5, 2024, at 11:04?AM, John, W9DDD <w9ddd at tapr.org> wrote:
> 
> ?Which color temperature did you order?    I'm guessing warm white would be closest to incandescent.  Not too bad a price considering they will be the last ones you'll have to buy, hopefully.
> 
> 
>> On 7/5/2024 8:41 AM, til128 at juno.com wrote:
>> Hi all:
>>  I seem to remember someone asking about an incandescent to LED replacement
>> for a mod28.
>>  I found one here if still interested:
>>    https://tinyurl.com/527vw7by
>> 
>> Tom WB2TTY Tillson
>> ______________________________________________________________
>> GreenKeys mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:GreenKeys at mailman.qth.net
>> 
>>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to w9ddd at tapr.org
> 
> --
> ---
> ----
> The above comments or recommendations are SWAG. Use at your own risk.
> 
> John, W9DDD
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net

From djones at k6yic.com  Fri Jul  5 12:50:05 2024
From: djones at k6yic.com (Daniel Jones)
Date: Fri, 5 Jul 2024 09:50:05 -0700
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <E00A3095-7DF7-4B82-BEC6-E8B5AD1FB93E@junknet.net>
References: <E00A3095-7DF7-4B82-BEC6-E8B5AD1FB93E@junknet.net>
Message-ID: <9097639E-6063-43DC-94A3-E101F46080DD@k6yic.com>

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From mmcauley at cox.net  Fri Jul  5 16:38:38 2024
From: mmcauley at cox.net (MIKE MCAULEY)
Date: Fri, 5 Jul 2024 20:38:38 +0000 (UTC)
Subject: [GreenKeys] Morse/Baudot/ASCII keyboard
In-Reply-To: <CAPK6WseADsS3nrE5EYJodo28LT1+Jq7ryjxj6gu3wfAhgeJJhg@mail.gmail.com>
References: <BL1PR12MB52690B1568ED83EEF96D248CB5002@BL1PR12MB5269.namprd12.prod.outlook.com>
	<BL1PR12MB52695597264616B347BBB1ADB5D52@BL1PR12MB5269.namprd12.prod.outlook.com>
	<CAPK6WseADsS3nrE5EYJodo28LT1+Jq7ryjxj6gu3wfAhgeJJhg@mail.gmail.com>
Message-ID: <1337958947.1261515.1720211918209@mail.yahoo.com>

Saw this at a communications place today that is liquidating a bunch of stuff. Know nothing about it but thought someone here might be interested.?
Located in Tucson @ 520-298-7434

Mike



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From radio_man at wbsnet.org  Fri Jul  5 16:39:30 2024
From: radio_man at wbsnet.org (RODNEY HOGG)
Date: Fri, 5 Jul 2024 16:39:30 -0400 (EDT)
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <9097639E-6063-43DC-94A3-E101F46080DD@k6yic.com>
References: <E00A3095-7DF7-4B82-BEC6-E8B5AD1FB93E@junknet.net>
	<9097639E-6063-43DC-94A3-E101F46080DD@k6yic.com>
Message-ID: <1269024207.70239277.1720211970781.JavaMail.zimbra@wbsnet.org>

Really don't know why to change to LED, I ran a Model 28 for 15 years, never replaced a bulb, had M28ASRs with 
highway patrol, never replaced lamps in them. Had a LONG life....gave away about 20 #82 lamps when sold my 
28ASR. 
Rod 



From: "Daniel Jones" <djones at k6yic.com> 
To: "Jeffrey Golas" <jeffg at junknet.net>, "Green keys" <greenkeys at mailman.qth.net> 
Sent: Friday, July 5, 2024 11:50:05 AM 
Subject: Re: [GreenKeys] No. 82 bulb replacement 

That?s a good deal. I bought some on Amazon awhile back and the ones I bought were $10 each (I use mine in an old battle lantern) 

[ https://a.co/d/03TBcypj ] [ https://a.co/d/03TBcypj | Aero-Lites.com #82, 64 Globe Shape Miniature Bulb LED Replacement | 6.5-Volt | BA15D Base (1-Pack; Warm White) ] 
[ https://a.co/d/03TBcypj | a.co ] 


Maybe I missed it but is there a reason you want to go LED? It looks like you can get a box of 10 incandescent #82 bulbs for 10 bucks. 

Daniel 


www.K6YIC.com 
DJones at K6YIC.com 
HH#11973 



On Jul 5, 2024, at 09:01, Jeffrey Golas <jeffg at junknet.net> wrote: 





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I got the warm white, if they look/work decent I may get a handful and try to light up the waterfalls at the ship. 

Jeff 


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Which color temperature did you order? I'm guessing warm white would be closest to incandescent. Not too bad a price considering they will be the last ones you'll have to buy, hopefully. 

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On 7/5/2024 8:41 AM, til128 at juno.com wrote: 

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Hi all: 

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I seem to remember someone asking about an incandescent to LED replacement 

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for a mod28. 

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I found one here if still interested: 

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https://tinyurl.com/527vw7by 

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Tom WB2TTY Tillson 

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______________________________________________________________ 

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Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch 

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Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

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This list hosted by: http://www.qsl.net 

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Message delivered to w9ddd at tapr.org 

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-- 

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--- 

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---- 

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The above comments or recommendations are SWAG. Use at your own risk. 

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John, W9DDD 

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______________________________________________________________ 

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Post: mailto:GreenKeys at mailman.qth.net 

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Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch 

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Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

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Help: http://mailman.qth.net/mmfaq.htm 
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Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch 

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2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/ 

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1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html 

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Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

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This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to djones at k6yic.com 

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______________________________________________________________ 
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Home: http://mailman.qth.net/mailman/listinfo/greenkeys 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:GreenKeys at mailman.qth.net 

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch 
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/ 
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html 
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
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From jeffg at junknet.net  Fri Jul  5 17:22:34 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 5 Jul 2024 17:22:34 -0400
Subject: [GreenKeys] No. 82 bulb replacement
In-Reply-To: <1269024207.70239277.1720211970781.JavaMail.zimbra@wbsnet.org>
References: <1269024207.70239277.1720211970781.JavaMail.zimbra@wbsnet.org>
Message-ID: <1A4223C0-8BDA-48B6-8E28-89A563AA868E@junknet.net>

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From harold at w6iwi.org  Fri Jul  5 17:27:38 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 14:27:38 -0700
Subject: [GreenKeys] Morse/Baudot/ASCII keyboard
In-Reply-To: <1337958947.1261515.1720211918209@mail.yahoo.com>
References: <BL1PR12MB52690B1568ED83EEF96D248CB5002@BL1PR12MB5269.namprd12.prod.outlook.com>
	<BL1PR12MB52695597264616B347BBB1ADB5D52@BL1PR12MB5269.namprd12.prod.outlook.com>
	<CAPK6WseADsS3nrE5EYJodo28LT1+Jq7ryjxj6gu3wfAhgeJJhg@mail.gmail.com>
	<1337958947.1261515.1720211918209@mail.yahoo.com>
Message-ID: <f3ac552908697ae4a5ea5d219f43709b.squirrel@hallikainen.org>

Interesting device! Manual at
https://bama.edebris.com/download/curtis/kb-4900/curtis_kb-4900_manual.pdf
.

I hope someone takes it!

Harold
https://w6iwi.org


On Fri, July 5, 2024 1:38 pm, MIKE MCAULEY wrote:
> Saw this at a communications place today that is liquidating a bunch of
> stuff. Know nothing about it but thought someone here might be
> interested.??
> Located in Tucson @ 520-298-7434
>
> Mike
>
>
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to harold at w6iwi.org


-- 
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From jeffg at junknet.net  Fri Jul  5 21:01:43 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 5 Jul 2024 21:01:43 -0400
Subject: [GreenKeys] Model 35
Message-ID: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>

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From navy.radio at gmail.com  Fri Jul  5 21:22:48 2024
From: navy.radio at gmail.com (Nick England)
Date: Fri, 5 Jul 2024 21:22:48 -0400
Subject: [GreenKeys] FSK converter madness
Message-ID: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>

I was checking out a newly acquired FSK converter (Harris RF-3352). It has
a built-in loop supply that connects via straps on the rear. Hooked up a
keyboard and printer and it worked fine in loopback (transmit audio tied to
receive audio). So I put it in a rack and hooked it up to my TTY patch
panel using the patch panel's loop supply and current limiting resistor.
Transmit audio sounds good and the receive M-S lights are blinking with
ITTY,. So far so good.
Then I plugged a reperf and a MITE printer into the receive loop.....
The printer prints but the reperf doesn't perf - Say What???
It's a loop, the reperf selector magnets are in series with the printer -
What's happening?

I tried a 28 printer (with LESU line relay) - it works but the reperf
doesn't. Tried another reperf (with LESU selector magnet driver) - it works
OK. Turns out that the loop is actually 60ma marking and 10ma spacing - so
I guess the reperf magnets were holding while the printers were cycling
normally.

So why is there 10ma in spacing?? Put it back on the bench and hooked up
the internal loop supply again - 60ma marking and 0ma spacing. Huh?

Well, here's what I think I figured out - the receive loop keyer is not
your typical transistor switch from loop + to ground - it is kinda
complicated with + and - loop keyers so you can configure it for polar or
neutral operation. And that circuit evidently draws 10ma from the loop +/-
terminals. That's no big deal when drawn directly from the internal loop
supply terminals, but because my TTY loop + is actually the p/s + fed
through the patch panel's current limiting resistor AND the reperf/printer,
then the 10ma is flowing through my signal loop and not just the supply
terminals. At least that's what I think is happening.
The manual says you can use an external loop supply, but as I found out,
you can't use an external loop supply with TTY devices in series! What a
strange engineering decision.
If you are curious, the manual is here  -
https://www.navy-radio.com/manuals/harris/rf3352-man-8310.pdf

So, I either need to modify this thing (and I really really hate to do
that) or use its internal supply and bypass my patch panel's supply. Ah
well, I've already done that bypass rewiring for a Dovetron with internal
supply so it isn't a big deal, just this week's annoying puzzle.

Semper TTY,
Nick England K4NYW
www.navy-radio.com
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From harold at w6iwi.org  Fri Jul  5 21:42:20 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 18:42:20 -0700
Subject: [GreenKeys] More on the DSP TU
Message-ID: <9f9888e0df8a3eeefd115fcf0015e33e.squirrel@hallikainen.org>

For those following along, I've updated the page on the DSP TU (
https://w6iwi.org/rtty/DspTU2/#:~:text=of%20TX%20%3D%2096%25-,More%20Wifi,-5/19/24
). The latest info includes the PCB revision, cabinet design, and progress
on WiFi (to eventually print ITTY without an external computer).

Harold
https://w6iwi.org




-- 
Not sent from an iPhone.

From jeffg at junknet.net  Fri Jul  5 21:55:00 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 5 Jul 2024 21:55:00 -0400
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
Message-ID: <7A30FAE0-1CDD-4F65-8BB5-5C8D0EF1A9C4@junknet.net>

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From harold at w6iwi.org  Fri Jul  5 22:18:41 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 19:18:41 -0700
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
Message-ID: <648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>

Interesting and complex design. I have not analyzed the loop interface, so
I can't comment on the 10 mA space. The tone generator is interesting. It
reminds me of a HAL design, though the HAL design used crystals for each
generated frequency while this uses a PLL synthesizer. The DAC for the
tone generation is very similar to what I've seen in HAL designs.

On the demodulator side, the design is similar to Dovetron units. That is,
the use of identical filters for mark and space and doing frequency
conversion in front of the filters.

Interesting design, but complicated. It's sure a whole lot easier to do in
DSP!

Thanks for posting the manual. I'll study it some more.

Harold
https://w6iwi.org



-- 
Not sent from an iPhone.

From harold at w6iwi.org  Fri Jul  5 22:30:08 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 19:30:08 -0700
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
Message-ID: <916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>

Following up, issues like this is why I really like having a terminal unit
act like a Teletype. It should be able to key a floating loop and sense
the current in a floating loop. An external loop supply with all equipment
(KSR printer, TD, Reperf, and TU) have the same interface to the loop.

Harold
https://w6iwi.org/rtty/DspTU2/





-- 
Not sent from an iPhone.

From jhhaynes at earthlink.net  Sat Jul  6 00:35:33 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Fri, 5 Jul 2024 23:35:33 -0500 (CDT)
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
Message-ID: <411ce8b3-3ee8-365f-8ca-52dfef9ce19c@earthlink.net>

On Fri, 5 Jul 2024, Harold Hallikainen via GreenKeys wrote:

> Following up, issues like this is why I really like having a terminal unit
> act like a Teletype. It should be able to key a floating loop and sense
> the current in a floating loop. An external loop supply with all equipment
> (KSR printer, TD, Reperf, and TU) have the same interface to the loop.
>
> Harold
> https://w6iwi.org/rtty/DspTU2/
>
And this has been one of the intellectual challenges of the last 2/3
of my life.

On the one hand, we would like to have things run on 60 ma loops so we
can just plug in standard TTY gear and have it work like it did in
history.

On the other hand, putting things in loops makes simple things more
complicated, like you have to use closed-circuit jacks for all the loops,
and you have to have dummy loops to keep machines from running open
when they aren't being used.

So if I were designing a set from the ground up I would have every
selector magnet use a solid-state driver, input voltages something
like RS-232 or MIL-STD-188, and selector magnet drivers biased so
that with the input not connected to anything the selector magnet
is held marking.  Every keyboard or tape reader would likewise be
hooked up to generate the low-voltage signals.  You have one or more
signal hubs, and everything can send into a hub and everything can
receive from a hub.  (Using gates so with multiple senders any one
of them can drive the hub to spacing.)  The low voltages can easily
be interfaced to electronic gear, so if you want to stick in a solid
state speed converter or a regenerative repeater it is duck soup.

I would insist on bipolar voltages like RS-232 or MIL-STD-188 because
in a radio setup there is RF floating around and it will be rectified
by all kinds of devices such that you don't get zero volts when nothing
is happening but the transmitter is running.

Many years ago I built my station along these lines, at first using
tubes since we didn't have any good high voltage transistors at the
time to use for selector magnet drivers.  Later I moved to a modified
RS-232 scheme when we got good transistors for the purpose.  But I
never got very far with it because I'm lazy and it was too much work
to build all those selector magnet drivers and I was constantly needing
more of them.  And I was somewhat more interested in having a historical
kind of installation where the 60m loops were part of the scheme.

Things were complicated by irv Hoff's insistence that you should always
be able to plug in a keyboard and printer in series into a loop and
have everything work.  I did some work on a "leg combiner" which could
take a keyboard and printer in series and tell the difference between
signals generated by the keyboard and signals coming from outside.

From jhhaynes at earthlink.net  Sat Jul  6 00:47:44 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Fri, 5 Jul 2024 23:47:44 -0500 (CDT)
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
Message-ID: <3785434a-432-8b5f-eb3e-9dd375fc5f7f@earthlink.net>

On Fri, 5 Jul 2024, Harold Hallikainen via GreenKeys wrote:

> Interesting design, but complicated. It's sure a whole lot easier to do in
> DSP!
>
I'm sure glad you young fellows know how to do DSP and are doing
interesting things with it.  I'm too old a geezer to break into that
stuff.  I sure was excited when K6STI put out his "RITTY" software,
because it could do some things that I had always wanted to see done
but that would take a lot of work to implement in hardware.

Maybe I'll suggest some experiments that I would like to see done
using DSP.

One of my observations is that ham RTTY is a more difficult challenge
than commercial/military/government (except perhaps military in a
conflict where the enemy is trying to make your communication fail.)
Non-amateur RTTY operations often have strictly assigned frequencies
where only the assignee is supposed to operate.  They don't have a
legal power limitation; they use as much power as is necessary to
get the traffic through.  They can if necessary devote some acreage
to the antenna farm for double or triple diversity.

Whereas hams have power limited by law and by economics, and in things
like contests and DX there are a lot more people trying to use a
frequency channel that just two, so there is QRM.  And usually
a station is fairly restricted in the space available to put up
antennas.  So it may be that the best commercial/military modem is
not necessarily the best one to use in ham radio.



From harold at w6iwi.org  Sat Jul  6 00:55:34 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 21:55:34 -0700
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <411ce8b3-3ee8-365f-8ca-52dfef9ce19c@earthlink.net>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
	<411ce8b3-3ee8-365f-8ca-52dfef9ce19c@earthlink.net>
Message-ID: <87bbb24086e452734a5767ed92bfe203.squirrel@hallikainen.org>

Thanks for the comments!

Voltage drive would make it easy since each receiver can "bridge the
line." But, that requires a driver circuit and loop supply for each
receiver (printer). Messy!

> Things were complicated by irv Hoff's insistence that you should always
> be able to plug in a keyboard and printer in series into a loop and
> have everything work.

I agree with Irv! I have patch boxes with 1/4 inch TRS shorting jacks.
Each patch box has its own loop supply, and I can just plug whatever
equipment I want into the loop, and everything works. The TU is just like
any other piece of equipment. It just gets plugged into the loop.

> I did some work on a "leg combiner" which could
> take a keyboard and printer in series and tell the difference between
> signals generated by the keyboard and signals coming from outside.

In the DSP TU, the loop current sample always drives the DDS AFSK
generator. It does not matter whether the loop is interrupted by the TU or
something else in the loop. However, with Keyboard Operated Send, it's
important to know whether the TU is interrupting the loop or something
else is (like a keyboard or TD). Otherwise, a received space would put us
into transmit. I handle this by disabling the KOS whenever the TU is
interrupting the loop and for a few milliseconds after the TU stops
interrupting the loop.

THANKS for the comments!

Harold
https://w6iwi.org/rtty/DspTU2/





From harold at w6iwi.org  Sat Jul  6 01:01:04 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 5 Jul 2024 22:01:04 -0700
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <3785434a-432-8b5f-eb3e-9dd375fc5f7f@earthlink.net>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<3785434a-432-8b5f-eb3e-9dd375fc5f7f@earthlink.net>
Message-ID: <d9b1569b6e3671c3d8523ee98d410a2c.squirrel@hallikainen.org>



On Fri, July 5, 2024 9:47 pm, Jim Haynes wrote:
> On Fri, 5 Jul 2024, Harold Hallikainen via GreenKeys wrote:
>
>> Interesting design, but complicated. It's sure a whole lot easier to do
>> in
>> DSP!
>>
> I'm sure glad you young fellows know how to do DSP and are doing
> interesting things with it.  I'm too old a geezer to break into that
> stuff.  I sure was excited when K6STI put out his "RITTY" software,
> because it could do some things that I had always wanted to see done
> but that would take a lot of work to implement in hardware.

This "young fellow" is now 72. I was young once...

>
> Maybe I'll suggest some experiments that I would like to see done
> using DSP.

I look forward to suggestions!

I'd like to do more with 850 Hz shift since, I believe, it will get
through selective fades better. Some quick experiments are at
https://w6iwi.org/rtty/DspTU2/#:~:text=of%20153%20mA.-,RYcount,-4/17/24 .
There is some "impaired audio" there that people can experiment with.

Thanks!

Harold


-- 
https://w6iwi.org

From navy.radio at gmail.com  Sat Jul  6 08:23:43 2024
From: navy.radio at gmail.com (Nick England)
Date: Sat, 6 Jul 2024 08:23:43 -0400
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <411ce8b3-3ee8-365f-8ca-52dfef9ce19c@earthlink.net>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
	<411ce8b3-3ee8-365f-8ca-52dfef9ce19c@earthlink.net>
Message-ID: <CAB55hNfstVghoD_bU=--0dn5HdEgiqXLqTH8ko=ndvDeZbyBkg@mail.gmail.com>

That's exactly what military low-level signaling is. Hubbing repeaters and
+/- signaling everywhere.
Info here -
https://www.navy-radio.com/manuals/tty/tty_ctl-391-6010.pdf


Nick England K4NYW
www.navy-radio.com


On Sat, Jul 6, 2024 at 12:35?AM Jim Haynes <jhhaynes at earthlink.net> wrote:

> On Fri, 5 Jul 2024, Harold Hallikainen via GreenKeys wrote:
>
> > Following up, issues like this is why I really like having a terminal
> unit
> > act like a Teletype. It should be able to key a floating loop and sense
> > the current in a floating loop. An external loop supply with all
> equipment
> > (KSR printer, TD, Reperf, and TU) have the same interface to the loop.
> >
> > Harold
> > https://w6iwi.org/rtty/DspTU2/
> >
> And this has been one of the intellectual challenges of the last 2/3
> of my life.
>
> On the one hand, we would like to have things run on 60 ma loops so we
> can just plug in standard TTY gear and have it work like it did in
> history.
>
> On the other hand, putting things in loops makes simple things more
> complicated, like you have to use closed-circuit jacks for all the loops,
> and you have to have dummy loops to keep machines from running open
> when they aren't being used.
>
> So if I were designing a set from the ground up I would have every
> selector magnet use a solid-state driver, input voltages something
> like RS-232 or MIL-STD-188, and selector magnet drivers biased so
> that with the input not connected to anything the selector magnet
> is held marking.  Every keyboard or tape reader would likewise be
> hooked up to generate the low-voltage signals.  You have one or more
> signal hubs, and everything can send into a hub and everything can
> receive from a hub.  (Using gates so with multiple senders any one
> of them can drive the hub to spacing.)  The low voltages can easily
> be interfaced to electronic gear, so if you want to stick in a solid
> state speed converter or a regenerative repeater it is duck soup.
>
> I would insist on bipolar voltages like RS-232 or MIL-STD-188 because
> in a radio setup there is RF floating around and it will be rectified
> by all kinds of devices such that you don't get zero volts when nothing
> is happening but the transmitter is running.
>
> Many years ago I built my station along these lines, at first using
> tubes since we didn't have any good high voltage transistors at the
> time to use for selector magnet drivers.  Later I moved to a modified
> RS-232 scheme when we got good transistors for the purpose.  But I
> never got very far with it because I'm lazy and it was too much work
> to build all those selector magnet drivers and I was constantly needing
> more of them.  And I was somewhat more interested in having a historical
> kind of installation where the 60m loops were part of the scheme.
>
> Things were complicated by irv Hoff's insistence that you should always
> be able to plug in a keyboard and printer in series into a loop and
> have everything work.  I did some work on a "leg combiner" which could
> take a keyboard and printer in series and tell the difference between
> signals generated by the keyboard and signals coming from outside.
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to navy.radio at gmail.com
>
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From steve.n4tty at gmail.com  Sat Jul  6 08:28:57 2024
From: steve.n4tty at gmail.com (Steve Garrison)
Date: Sat, 6 Jul 2024 08:28:57 -0400
Subject: [GreenKeys] Model 35
In-Reply-To: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
References: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
Message-ID: <180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>

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From teletypeparts at comcast.net  Sat Jul  6 14:35:52 2024
From: teletypeparts at comcast.net (WAYNE)
Date: Sat, 6 Jul 2024 14:35:52 -0400 (EDT)
Subject: [GreenKeys] Model 35
In-Reply-To: <180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>
References: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
	<180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>
Message-ID: <777872641.1175380.1720290952976@connect.xfinity.com>

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From jhhaynes at earthlink.net  Sat Jul  6 15:28:08 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Sat, 6 Jul 2024 14:28:08 -0500 (CDT)
Subject: [GreenKeys] Model 35
In-Reply-To: <180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>
References: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
	<180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>
Message-ID: <287cdadd-d78a-e91-eb35-8cfa7143585c@earthlink.net>

Models 33 and 35 are upper case only ASCII.

There was going to be a model 29 up/low case to replace Model 20,
but apparently nobody wanted any of them, so Model 29 became an
upper case only machine for a computer BCD code.  In the same time
frame there was Fieldata for the military.  Everybody realized we
needed a new code for everything, and that's why ASCII was under
such widespread development.  Supposedly Model 29s were not to be
used outside the Bell System, and in fact that model number was
officially skipped.  It was officially called Model 28 Integrated
Data Processing ASR set.  Maybe the lame excuse was that Model 28
equipment was already being produced with a variety of non-Baudot
codes for computer makers, so this was just another opportunity
to sell Model 28s. Probably the AT&T antitrust consent decree of
1956 had something to do with it too.  Western Electric and Teletype
were not supposed to sell anything outside the Bell System that had
not first been developed for the Bell System, with an exception for
sales to the government.

Being up/low case was something recognized as needed during the
development of ASCII, but it took a lot of time  be incorporated.
And then there was the IBM exception.

The IBM punched card code had a fairly simple translation to a BCD
code.  That translation involved some non-alphabetic characters
stuck in the middle of the alphabet.  Developers of ASCII felt that
the ideal code would not have those gaps, which interfered with 
alphabetical sorting.  So it was AT&T and the other "pure good guys"
up against IBM and the whole data processing industry.  Things were at
an impasse until IBM suddenly withdrew its objections and ASCII was
standardized without the gaps in the alphabet.  We were to learn later
that IBM, rather than doing the Right Thing, had decided to forge ahead
with their own code EBCDIC and bet they had enough power to make the
industry do things their way.

Another complexity in the ASCII stew was the keyboard arrangement.
There was considerable support for a keyboard arrangement like that of
typewriters.  But this required assigning bit patterns to the keys
so that a shift key cause a simple change in the bit patterns.
An alternative was called the bit-paired, where the upper and lower
case characters on the keys were simply related but the key tops
were different from those on typewriters.  All this is passe now
since it's just a matter of each key depression generating a number
than can be looked up in a memory and translated into any character
you wish.  But it explains why at the time ASCII was not an easy project
and consumed a lot of time and travel by a lot of experts.  And why
there are still conflicts and compromises.


---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man

From jomarquilatan at gmail.com  Sat Jul  6 18:58:51 2024
From: jomarquilatan at gmail.com (Jomar Quilatan)
Date: Sat, 6 Jul 2024 18:58:51 -0400
Subject: [GreenKeys] HAL ST-5000
Message-ID: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>

Hi all,

I recently saw an ST-5000 up on eBay (should have looked sooner haha).  I
had already previously ordered the IRL demodulator thanks to advice from
you, but since this unit presumably contains the loop supply, then I assume
that?s why it?s so sought after.

However, I?m sure there?s the gamble of whether or not it works as
intended. To any ST-5000 owners: did you have to do any restoration on your
unit when you first got it? What could be a common failing point or any
other considerations for the unit? I still am deciding on how I want to
design my loop supply if I stick with the IRL route as I have limited bench
space, but just putting this out there - keeping an eye on if I might have
been impulsive jumping onto the IRL unit or weighing if I will regret going
for the HAL if I do haha.

Regards,

*Jomar (Joshua Martin) Quilatan*
Mississauga (Toronto), Canada
RA 0-8045
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From jomarquilatan at gmail.com  Sat Jul  6 19:05:44 2024
From: jomarquilatan at gmail.com (Jomar Quilatan)
Date: Sat, 6 Jul 2024 19:05:44 -0400
Subject: [GreenKeys] HAL ST-5000
In-Reply-To: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
References: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
Message-ID: <CAP5eFddTG1H4fmd96mO-f2J6Ux7CPoQf9Mqgsg3NLcP1QvfK=g@mail.gmail.com>

Forgot to add part of my main question; of course it would only come to me
after I hit "Send" on the first e-mail...

Are there any particularly sensitive parts of the ST-5000 that could go
awry in the hopefully unlikely event of poor shipping practice (packing
and/or handling)?  This one's (understandably) got a hefty shipping price
so I'm weighing that factor in, too.

*Jomar (Joshua Martin) Quilatan*


On Sat, Jul 6, 2024 at 6:58?PM Jomar Quilatan <jomarquilatan at gmail.com>
wrote:

> Hi all,
>
> I recently saw an ST-5000 up on eBay (should have looked sooner haha).  I
> had already previously ordered the IRL demodulator thanks to advice from
> you, but since this unit presumably contains the loop supply, then I assume
> that?s why it?s so sought after.
>
> However, I?m sure there?s the gamble of whether or not it works as
> intended. To any ST-5000 owners: did you have to do any restoration on your
> unit when you first got it? What could be a common failing point or any
> other considerations for the unit? I still am deciding on how I want to
> design my loop supply if I stick with the IRL route as I have limited bench
> space, but just putting this out there - keeping an eye on if I might have
> been impulsive jumping onto the IRL unit or weighing if I will regret going
> for the HAL if I do haha.
>
> Regards,
>
> *Jomar (Joshua Martin) Quilatan*
> Mississauga (Toronto), Canada
> RA 0-8045
>
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From djones at k6yic.com  Sat Jul  6 19:08:17 2024
From: djones at k6yic.com (Daniel Jones)
Date: Sat, 6 Jul 2024 16:08:17 -0700
Subject: [GreenKeys] RTTY graphics
Message-ID: <365EFBF5-1F0E-4C01-A922-461399E2C726@k6yic.com>

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From jeffg at junknet.net  Sat Jul  6 19:10:39 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Sat, 6 Jul 2024 19:10:39 -0400
Subject: [GreenKeys] HAL ST-5000
In-Reply-To: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
References: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
Message-ID: <6D4F89F2-47D0-4E92-A0A2-8045EC3F74EE@junknet.net>

Most of these things are simple enough that they would have to have catastrophic failure to not be fixable. That Hal does look decent tho, Id treat the adhesive on it to some wd40 to get it off and clean it up. I have a Hal st-6 that survived 3 field days, in addition to my home use, in addition to whatever it went through the last oh, 50 years.

Jeff KC3GJX



> On Jul 6, 2024, at 6:59?PM, Jomar Quilatan <jomarquilatan at gmail.com> wrote:
> 
> ?
> Hi all,
> 
> I recently saw an ST-5000 up on eBay (should have looked sooner haha).  I had already previously ordered the IRL demodulator thanks to advice from you, but since this unit presumably contains the loop supply, then I assume that?s why it?s so sought after.
> 
> However, I?m sure there?s the gamble of whether or not it works as intended. To any ST-5000 owners: did you have to do any restoration on your unit when you first got it? What could be a common failing point or any other considerations for the unit? I still am deciding on how I want to design my loop supply if I stick with the IRL route as I have limited bench space, but just putting this out there - keeping an eye on if I might have been impulsive jumping onto the IRL unit or weighing if I will regret going for the HAL if I do haha.
> 
> Regards,
> 
> Jomar (Joshua Martin) Quilatan
> Mississauga (Toronto), Canada
> RA 0-8045
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net
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From djones at k6yic.com  Sat Jul  6 19:11:35 2024
From: djones at k6yic.com (Daniel Jones)
Date: Sat, 6 Jul 2024 16:11:35 -0700
Subject: [GreenKeys] HAL ST-5000
In-Reply-To: <CAP5eFddTG1H4fmd96mO-f2J6Ux7CPoQf9Mqgsg3NLcP1QvfK=g@mail.gmail.com>
References: <CAP5eFddTG1H4fmd96mO-f2J6Ux7CPoQf9Mqgsg3NLcP1QvfK=g@mail.gmail.com>
Message-ID: <C5E55564-2058-414D-8FDF-5DA1FC844A46@k6yic.com>

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From djones at k6yic.com  Sat Jul  6 19:22:21 2024
From: djones at k6yic.com (Daniel Jones)
Date: Sat, 6 Jul 2024 16:22:21 -0700
Subject: [GreenKeys] HAL ST-5000
Message-ID: <D07BE417-B9B6-4B9E-B757-8ED9146D6288@k6yic.com>


I used a boost converter similar to this plus a power resister to limit the current.  Mine is set to run on 24v so I can use it with my military equipment but the boost converter can use anything from 10-32vdc.  

https://www.ebay.com/itm/113942188367?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=pOLbrmPSQdW&sssrc=4429486&ssuid=AycLQQAWQ4m&var=&widget_ver=artemis&media=COPY




www.K6YIC.com
DJones at K6YIC.com
HH#11973
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From elb at kb8ojh.net  Sat Jul  6 19:56:45 2024
From: elb at kb8ojh.net (Ethan Blanton)
Date: Sat, 6 Jul 2024 19:56:45 -0400
Subject: [GreenKeys] Model 35
In-Reply-To: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
References: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
Message-ID: <ZonZvWV0Ig_g6OqW@colt.lan>

Jeffrey Golas wrote:
> Always wondered what made a 35 so special (ish) and now that I see pics of
> one, its an ascii 28! I didnt think the type box could hold enough to
> cover ASCII.

It can't, by modern standards!  ASCII 1967 has 93 printable
characters, including both upper and lowercase letters and 32
punctuation and symbol characters, but ASCII 1963 has only 63 -- which
fits into the Model 28 type box of 64 pallets.

I've attached a (mirrored for easy reading) scan of a Model 35 type
box to this message, and I was prompted to write up a little bit about
ASCII and the Model 33/35 line here:

https://lostbits.net/blog/the-teletype-model-35-character-set.html

Ethan
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From harold at w6iwi.org  Sat Jul  6 19:59:58 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Sat, 6 Jul 2024 16:59:58 -0700
Subject: [GreenKeys] Model 35
In-Reply-To: <287cdadd-d78a-e91-eb35-8cfa7143585c@earthlink.net>
References: <275AE3DD-8FE0-493D-99CD-3B23268012FD@junknet.net>
	<180F6D92-6A4C-414A-B778-FA75B61A4A73@gmail.com>
	<287cdadd-d78a-e91-eb35-8cfa7143585c@earthlink.net>
Message-ID: <df92685d67f856ba390ee988d3c8a2f6.squirrel@hallikainen.org>



On Sat, July 6, 2024 12:28 pm, Jim Haynes wrote:

> Another complexity in the ASCII stew was the keyboard arrangement.
> There was considerable support for a keyboard arrangement like that of
> typewriters.  But this required assigning bit patterns to the keys
> so that a shift key cause a simple change in the bit patterns.
> An alternative was called the bit-paired, where the upper and lower
> case characters on the keys were simply related but the key tops
> were different from those on typewriters.  All this is passe now
> since it's just a matter of each key depression generating a number
> than can be looked up in a memory and translated into any character
> you wish.  But it explains why at the time ASCII was not an easy project
> and consumed a lot of time and travel by a lot of experts.  And why
> there are still conflicts and compromises.

One of my early products was a "program logging system" for automated
radio stations. It place 3.5 kHz FSK on the cue track of tape cartridges.
When the cartridge was played, the time was printed along with the AFSK
data. These used the XR2206 to generate the AFSK and the XR2211 to
demodulate. The very first design used a model 15 as the printer. Time
data came from an external clock as parallel BCD. This was converted to
Baudot with a diode matrix for each digit. The diode matrix drove a
parallel load shift register for each character to be printed. The CRLF,
time, and a space were shifted out of the long shift register. The AFSK
demodulator in this unit used an NE565 PLL. The carrier detect output from
that (lock detect) would cause the time data to be loaded and shifted out.
This was then followed by the AFSK data from the tape cartridge.

In the next design (
https://bh.hallikainen.org/index.php/HallikainenAndFriends#:~:text=LOG112%20Program%20Logging%20System
), the printer was a Teletype model 43, which is ASCII. It is VERY SIMPLE
to convert BCD to ASCII (set the 3 msb to 0x3). The 4 lsb are the BCD.
This system used a clock chip with a multiplexed BCD output. The carrier
detect output of the XR2211 would reset a counter which would then route
the digit strobes coming out of the clock chip to the strobe input of a
UART. It would capture each of the BCD digits and send them. The counter
also drove a ROM chip (MM6330-1) which set the msbs to 0x3. It also
generated the CRLF sequence. It also converted a 1 of 10 input to an
"alarm letter" that would be printed after the time before the AFSK data
would start printing.

It was REALLY NICE that it was so easy to convert from BCD to ASCII. Also,
changing one bit would change between upper and lower case. I really think
ASCII is very well thought out.

In some later projects, like
https://www.movingimagetech.com/images/products/mit-ADA-Accessibility/R000301_IRC_Manual_v23-08-01.pdf
, I got to work with UTF-8. Also very clever! ASCII is just passed
through. If the msb is set, it's the start of UTF-8 encoding of a Unicode
code point that is above 127. I converted the incoming UTF-8 to 16 bit
characters that then indexed into a table of 8x16 and 16x16 bitmaps in the
Unifont table.

So, I really appreciate ASCII, and appreciate how UTF-8 allows for more
characters while still supporting ASCII.

People have done some clever stuff!

Harold
https://w6iwi.org/rtty

-- 
Not sent from an iPhone.

From w1an.dxusa at gmail.com  Sun Jul  7 09:15:39 2024
From: w1an.dxusa at gmail.com (John Spigel)
Date: Sun, 7 Jul 2024 13:15:39 +0000
Subject: [GreenKeys] Nu Data 922-B-1 Test set on ebay
Message-ID: <f6ea6fc3-aa1a-4858-924f-67219509a46e@gmail.com>

Interesting item on ebay. Not mine, etc.. No recommendation, just for 
the curious.

Search on ebay for Nu Data teletype Test Set 922-B-1

73, John W1AN

From macbax1 at gmail.com  Sun Jul  7 09:34:28 2024
From: macbax1 at gmail.com (Joe Clanin)
Date: Sun, 7 Jul 2024 08:34:28 -0500
Subject: [GreenKeys] Nu Data 922-B-1 Test set on ebay
In-Reply-To: <f6ea6fc3-aa1a-4858-924f-67219509a46e@gmail.com>
References: <f6ea6fc3-aa1a-4858-924f-67219509a46e@gmail.com>
Message-ID: <CAK1UwOZ2u7i7rLiqzRUTwXboO1RJPuTV8x-D4Tq6UGdRGeiwhQ@mail.gmail.com>

This is the unit I advertised on behalf of Larry Baak in Des Moines, IA a
while ago.

He also has a Model 32 for sale for $100.

Best,

Joe

On Sun, Jul 7, 2024 at 8:16?AM John Spigel <w1an.dxusa at gmail.com> wrote:

> Interesting item on ebay. Not mine, etc.. No recommendation, just for
> the curious.
>
> Search on ebay for Nu Data teletype Test Set 922-B-1
>
> 73, John W1AN
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to macbax1 at gmail.com
>
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From tomhenryhunter at gmail.com  Sun Jul  7 10:32:58 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Sun, 7 Jul 2024 10:32:58 -0400
Subject: [GreenKeys] N3CRK Streams
Message-ID: <CAJK8692hnRbma7VHHFX+HQQtPS0=fHB-shgrCL0cQSE-3-hxmw@mail.gmail.com>

None of my streams are "dead".  I have been having local network problems
and neither news computer could talk to the Icecast server. I have them up
again now. retype and ttyart are generated on the server computer so they
were still on.

I have bought Netgear switches to replace my trouble-prone Linksys ones. I
have to make time to get them installed.

We have been getting brief (about one second) power outages and they play
havoc with my system.I guess I should be checking my server everyday from
now on.

I apologize for the problems.

It is a lot of work for one person and I am trying to bring a butchered 15
back to life, bring several riding mowers back to life and cut about 5
acres of grass.

Tom    N3CRK
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From teletypeparts at comcast.net  Sun Jul  7 14:15:33 2024
From: teletypeparts at comcast.net (WAYNE)
Date: Sun, 7 Jul 2024 14:15:33 -0400 (EDT)
Subject: [GreenKeys] HAL ST-5000
In-Reply-To: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
References: <CAP5eFde=AB=dsHHi2yea8Va6UTEKFeCdCM32+nkCGf8Lgj6T1g@mail.gmail.com>
Message-ID: <1295706735.1122918.1720376133623@connect.xfinity.com>

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From teletypeparts at comcast.net  Sun Jul  7 14:20:53 2024
From: teletypeparts at comcast.net (WAYNE)
Date: Sun, 7 Jul 2024 14:20:53 -0400 (EDT)
Subject: [GreenKeys] I should have said built in loop power supply.
Message-ID: <1880278751.1123067.1720376453184@connect.xfinity.com>

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From w2hx at w2hx.com  Sun Jul  7 20:49:38 2024
From: w2hx at w2hx.com (W2HX)
Date: Mon, 8 Jul 2024 00:49:38 +0000
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<916f74408dd91b46fc4b2b24d52d6b23.squirrel@hallikainen.org>
Message-ID: <PH0PR12MB88210F3BCA62ECC60FD7552CB5DA2@PH0PR12MB8821.namprd12.prod.outlook.com>

If I understand you correctly, I am in agreement! This is why I did my project for an external loop and current control panel. I would love to bypass the internal supply on the ST-6, but I might instead work to do that on a Dovetron I have, which will hopefully, make it to the bench one of these days for evaluation.


73 Eugene W2HX
My Youtube Channel:?https://www.youtube.com/@w2hx/videos
 

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Harold Hallikainen via GreenKeys
Sent: Friday, July 5, 2024 10:30 PM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] FSK converter madness

Following up, issues like this is why I really like having a terminal unit act like a Teletype. It should be able to key a floating loop and sense the current in a floating loop. An external loop supply with all equipment (KSR printer, TD, Reperf, and TU) have the same interface to the loop.

Harold
https://w6iwi.org/rtty/DspTU2/





--
Not sent from an iPhone.
______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: 
>>> https://teletype.net/gksearch 2002-to-present greenkeys archive: 
>>> http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: 
>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: 
>>> http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to w2hx at w2hx.com

From w2hx at w2hx.com  Sun Jul  7 21:12:23 2024
From: w2hx at w2hx.com (W2HX)
Date: Mon, 8 Jul 2024 01:12:23 +0000
Subject: [GreenKeys] Good news and...gooder news
In-Reply-To: <A8A7C090-8187-4AED-8DD5-D53A8D197980@junknet.net>
References: <A8A7C090-8187-4AED-8DD5-D53A8D197980@junknet.net>
Message-ID: <PH0PR12MB8821D6D929DEBE80B85D46EEB5DA2@PH0PR12MB8821.namprd12.prod.outlook.com>

> helping move 5 urt-23 power supplies down a deck I think I lost 10lbs in 3 hours.

If these are the 3-phase supplies, I can attest these are the densest pieces of equipment I have ever encountered! They feel like they're filled with lead and are deceivingly heavy for their small size. Happy to hear the NJ is getting these URT-23s online.


73 Eugene W2HX
My Youtube Channel: https://www.youtube.com/@w2hx/videos

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Jeffrey Golas
Sent: Monday, July 1, 2024 10:38 PM
To: GreenKeys at mailman.qth.net
Subject: [GreenKeys] Good news and...gooder news

The Battleship NJ is back at the pier and hoping to reopen this week. The good news is the 28 asr/dometop in message handling seems to still be happy (it still needs a little clutch adjustment), and gooder news is I was wrong and the Harris radio I was using for RTTY is fine and next time Im at the ship (not this weekend) Im hoping to get her back on RTTY. Ill try to shoot out something here ahead of time so maybe we can give it a workout. I was there last weekend however the AC was working hard to cool her off but I could have baked cookies in message handling, and after helping move 5 urt-23 power supplies down a deck I think I lost 10lbs in 3 hours.

Better yet, we got a handful of urt-23 transmitters while we were in dry dock, so I guess my next projects include sorting out the (chopped up) transmitter switchboard so we can get at LEAST one of those up and running! The transmitter room is starting to fill out nicely!

Future projects because Im a serious glutton for punishment and you heard it here: by the end of the year, I want to do a torn tape message with Nick. This will involve reconnecting/fixing up the system enough to get it connected, and either connect the loops on asr #1 (75 baud) AND/OR...perhaps bring a crusty waterfall back from the dead. (They are in VERY rough shape). I need to bribe/ sweet talk the guy that does the mechanicals lol. (He has at least one printer unit I think). At a minimum, Im hoping to fix enough wiring to light them up again. Id love to find an LED warm-white replacement bulb for them (something that would work in any model 28).

Adult drinks may have been involved in this post, so take it with a grain of salt, but Im sticking to my goals. ;-)

Jeff KC3GJX and sometimes NJ2BB
[cid:image001.jpg at 01DAD0B2.5C0BE350]





______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
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From tomhenryhunter at gmail.com  Mon Jul  8 19:16:58 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Mon, 8 Jul 2024 19:16:58 -0400
Subject: [GreenKeys] Teletype Loops
Message-ID: <CAJK8691yz9rivrHp=7YzoWm=2ODHPDHRY91fwsHXZET1AMrPXQ@mail.gmail.com>

I run six loops out of an SB-1203A patching panel (although that is not
necessary) Loops 1,2 and 3 are remotely powered.(powered by modems with
internal loop supplies.) 4,5 and  6 are powered by the SB-1203A. I can use
them as test loops or key them with an RS-232 modem and a polar relay. The
first four loops appear at  locations where I work on or use Teletypes.

I am trying to pull a wire to get the last two loops  over to the house,
but it is very difficult to pull a new wire through a 100 foot buried
plastic pipe that already has several wires in it and has a 90 degree bend
near one end. I have not even gotten a snake though it yet.


Tom  N3CRK
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From jhhaynes at earthlink.net  Tue Jul  9 22:52:52 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Tue, 9 Jul 2024 21:52:52 -0500 (CDT)
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <d9b1569b6e3671c3d8523ee98d410a2c.squirrel@hallikainen.org>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<3785434a-432-8b5f-eb3e-9dd375fc5f7f@earthlink.net>
	<d9b1569b6e3671c3d8523ee98d410a2c.squirrel@hallikainen.org>
Message-ID: <e8ce5ae-1df5-e14e-794f-8c69d0cdca9@earthlink.net>

On Fri, 5 Jul 2024, Harold Hallikainen wrote:

> I'd like to do more with 850 Hz shift since, I believe, it will get
> through selective fades better. Some quick experiments are at
> https://w6iwi.org/rtty/DspTU2/#:~:text=of%20153%20mA.-,RYcount,-4/17/24 .
> There is some "impaired audio" there that people can experiment with.
>
See


Apr 1996 - QST (Pg. 78)
The Case for Wide-Shift RTTY
(Technical Correspondence)

Author: Beezley, Brian, K6STI
Article: QST Archive [PDF]
Report a problem with this entry

Apr 1996 - QST (Pg. 78)
The Case for Wide-Shift RTTY
(Technical Correspondence)

Author: Beezley, Brian, K6STI
Article: QST Archive [PDF]
Keywords: RTTY
Report a problem with this entry

However wide shift caused some problems for hams.  Such as CW ops 
complaining about using so much bandwidth to get only 60 wpm.  Irv
Hoff reported that narrow shift seemed to greatly cut down on the
amount of possibly delibate QRM to RTTY contacts.  And perhaps one
of the reasons ARRL/QST practically ignored RTTY for quite a while
And then in contests there were so many stations trying to operate
that the "excessive" bandwidth seriously crimped things.

It has long been my belief, without any documentary evidence, that
wide shift was originally chosen to improve operation in the years
when drifty equipment was serious.  In a ham qso we could keep a hand
on the tuning knob while watching the tuning indicator, but in
commercial/govenment use they would like to have a circuit operate
for hours hands-off.  Well one bit of evidence is the AN/FGC-1 FSK
demodulator designed by Bell Labs.  The discriminator in that set is
not linear, but rather uses a pair of bandpass filters that are
fairly flat over a range of frequencies.

Contrariwise, the article on RTTY in Electronics magazine, November 1944,
Robert M. Sprague was the original source of RTTY knowledge for many
of us hams.  He advocated a linear discriminator, linear far beyond
the mark and space frequencies.  I believe practially every ham designed
demodulator was defective in having the peaks of the discriminator at
the mark and space frequencies.  This was convenient as a tuning
indicator, but didn't take full advantage of discriminator capture by
the strongest signal in the passband.  Sprague didn't explain the reason
for wide linearity.  That remained for Prof. Don Wiggins W4EHU in some
articles in RTTY circa 1960.  If two signals of unequal strength are
presented to a limiter and linear discriminator the result is suppression
of the weaker signal - what is called limiter capture in FM operation.
The discriminator output contains spikes in instantaneous frequency which
average out in the post-discriminator low pass filter.  But if the
discriminator is nonlinear they don't average out to zero.  So an optimum
design besides the wide discriminator linearity would have filtering
ahead of the limiter to try to weaken undesired signals, those removed
from the mark and space frequencies.

So an experiment for the DSP guys is to build a 
filter-limiter-discriminator demodulator with a widely linear 
discriminator and experiment with filtering ahead of the limiter,
such as a twin peak filter to weaken signals not near the mark and
space frequencies.

Sprague also advocated hysteresis in the mark/space decision threshold
circuit following the discriminator.  That is, it takes more voltage
to flip the demodulator output from one state to the other than if
there is a single threshold halfway between.  Experiment with whether
this is so, and if so how much hysteresis is best.  I recall one
amateur design that used anticipation rather than hysteresis.  If it
looked like the signal was changing from one state to the other then
speed the change rather than waiting for it to be manifest.

There is a paper (which at the moment I can't find) on the optimum 
bandwidth of a post-discriminator low pass filter.  The conclusion
was that the supposedly optimum filter bandwidth was a little too
narrow for normal operating conditions.  It reduced the error rate
on really bad signals, but they were too bad to be of any use.

Now there were a bunch of papers by Elie Baghdady of MIT on the
use of positive feedback around a limiter.  I guess the idea was
that if a limiter improved the SNR then an additional limiter would
improve it more and positive feedback was a way to achieve that.
I believe his final conclusion was that the positive feedback should
be just sufficient to cause the limiter to oscillate in the no-signal
condition.  Then the slightest signal would override the oscillation.
For RTTY use an additional feature is that the oscillating limiter
would act as a mark hold if the oscillation takes place near the
mark frequency.

So there's a whole program of research on the limiter-discriminator
style of FSK demodulator to keep you busy.  It seems just possible that
the limiter discriminator circuit might outperform the two-tone
designs in the special case of amateur contests where there is a lot
of interference.  A lot of theory is concerned with receiving the
weakest of signals, which is not the problem in an RTTY contest.

Jim W6JVE

From harold at w6iwi.org  Wed Jul 10 00:09:59 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Tue, 9 Jul 2024 21:09:59 -0700
Subject: [GreenKeys] FSK converter madness
In-Reply-To: <e8ce5ae-1df5-e14e-794f-8c69d0cdca9@earthlink.net>
References: <CAB55hNemfJw_hy50kbpdZ19vUovvYZNdOY=FfA770VuEM8HByg@mail.gmail.com>
	<648451eb5538230b87e82264add215fe.squirrel@hallikainen.org>
	<3785434a-432-8b5f-eb3e-9dd375fc5f7f@earthlink.net>
	<d9b1569b6e3671c3d8523ee98d410a2c.squirrel@hallikainen.org>
	<e8ce5ae-1df5-e14e-794f-8c69d0cdca9@earthlink.net>
Message-ID: <4013b3c75e66db6bba3ce6d8e32a9e87.squirrel@hallikainen.org>

Jim,

Thanks for all the great info! In my experiments, I've found that having
the tone filter bandwidth about 1.7 times the baud rate allows the
discriminator to reach full amplitude on alternating bits ( see some eye
diagrams at https://w6iwi.org/rtty/DspTU2/ ). I think the tone filter
bandwidths are largely determining how the system works as opposed to the
low pass filter after envelope detection. I've got that set fairly high (I
don't remember exactly what frequency it is set to).

Limiters are fascinating. Very simple, but as we get into capture effect
and instantaneous frequency, they become quite interesting. A common
method of demodulating FM in modulation monitors for broadcast was
(probably now DSP) to trip a monostable on each zero-cross. As the
frequency is varied, the duty cycle varies (the pulse width is constant,
but the time between the pulses varies). The pulse train is then run
through a low pass filter to recover the modulation. This also would be
easy to do in DSP.

In my initial experiments with impaired audio (
https://w6iwi.org/rtty/DspTU2/#:~:text=of%20153%20mA.-,RYcount,-4/17/24 ),
I got 97% copy (counting Rs and Ys) with "AM mode" demodulation at 170 Hz
shift and 96% in "FM mode" (using a limiter). These were both with two
tone filters instead of a linear FM demodulator. I could convert the two
tone demodulator to a linear FM demodulator by increasing the filter
bandwidth to form a Round-Travis Discriminator.

At 850 Hz shift, I got 100% copy with both AM and FM modes.

I also tested my Flesher TU-170, which uses a limiter and two tone filters
instead of a linear discriminator and got 97% copy, the same as the DSP TU
with 170 Hz shift and a limiter.

I still think that 850 Hz shift will survive selective fading better than
170 Hz shift since both mark and space would not disappear at the same
time with the wider shift.

I'll check your latest list of references (THANKS!). My summary of my
current references is at https://w6iwi.org/rtty/TuReferences.html . I also
link to your list there.

Again, thanks for the comments!

Harold
https://w6iwi.org




From tomhenryhunter at gmail.com  Thu Jul 11 12:45:18 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Thu, 11 Jul 2024 12:45:18 -0400
Subject: [GreenKeys] Teletype Loops
Message-ID: <CAJK86902bTHigw=w+2XYqwTT=HsAnbA18_Vz0C_aMOQ1a=M-SQ@mail.gmail.com>

To Anthony Watson

On what kind of patching to use, I would agree with Harold H. on this one.
In addition to tip/ring jacks I use a lot of tip/ring/sleeve jacks. Like
Harold, I buy 4 x 4 electrical boxes and plates. Usually I mount two rows
of three TRS jacks on them for two loops. If I need more loops, I make more
boxes and mount them side by side. I use cat-5 for four loops.

I am including photos of three of my TRS boxes. The new one I just built
and two older ones.

Sometimes I solder directly other times I use cat-5 plugs and surface mount
jacks - depends on my mood and my junk box.

I have a hundred or more TRS jacks and buy Chinese TRS plugs on eBay from a
U.S seller if I can find one. I buy ten or twenty at a time. I use
2-conductor shielded wire. I ground the boxes and ground the shields to the
Teletypes.

As for many machines on one loop - I am a firm believer in a 120 volt loop
with series resistors and a pot to set it to 60 mils.  You can find
multiple amp 120 VDC power supplies for about $52 on eBay. They must be
ordered from China. One of those would probably run a model 19 or certainly
all the loops you could want. I bought one I am going to hook up one of
these days.

While I have TUs on several loops to monitor my own streams for testing
Teletypes, I also have local DC loops for testing machines with their
keyboards.

By the way, when soldering plugs, never put them in a vice, it will distort
them. I clamp a long frame jack in the vice and put the plug into the jack.
Or plug them into a jack on your electrical box before you mount it. It
will be heavy enough to support the plug while you solder.

Jim Cooper,

While I like your idea of using fence posts. My underground wires run
roughly along a sidewalk with nary a fence post in sight except for the
electric fence running around my raised bed garden for only about a fourth
of the distance.
Kevin Schuchmann,
Good idea but at one end my wires run about 10 feet up to the ceiling,  20
feet across the radio building and back down and the other ends run about
50 feet across the cellar ceiling and up to my den. So it is not practical
to pull either end out. I will look for shorter wires though.


Tom   N3CRK
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From navy.radio at gmail.com  Thu Jul 11 13:23:49 2024
From: navy.radio at gmail.com (Nick England)
Date: Thu, 11 Jul 2024 13:23:49 -0400
Subject: [GreenKeys] Teletype Loops
In-Reply-To: <CAJK86902bTHigw=w+2XYqwTT=HsAnbA18_Vz0C_aMOQ1a=M-SQ@mail.gmail.com>
References: <CAJK86902bTHigw=w+2XYqwTT=HsAnbA18_Vz0C_aMOQ1a=M-SQ@mail.gmail.com>
Message-ID: <CAB55hNfMS4NxOEcoO1i-6g2eiZ27NcbjUY-r95nV1vnz7S4q=g@mail.gmail.com>

Tom's photos reminded me of one advantage to using TRS jacks (as opposed to
my Navy patch panel with TS jacks) - you can grab hold of the plug shell
without worry!
Cheers,
Nick


On Thu, Jul 11, 2024 at 12:45?PM Tom Hunter <tomhenryhunter at gmail.com>
wrote:

>
> On what kind of patching to use, I would agree with Harold H. on this one.
> In addition to tip/ring jacks I use a lot of tip/ring/sleeve jacks. Like
> Harold, I buy 4 x 4 electrical boxes and plates. Usually I mount two rows
> of three TRS jacks on them for two loops. If I need more loops, I make more
> boxes and mount them side by side. I use cat-5 for four loops.
>
>
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From smithab11 at comcast.net  Thu Jul 11 14:24:49 2024
From: smithab11 at comcast.net (B. Smith)
Date: Thu, 11 Jul 2024 14:24:49 -0400
Subject: [GreenKeys] Polar Relays
Message-ID: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>

It seems that Polar Relays are becoming popular again. Info and a test 
jig can be found:
http://k4che.com/Polar%20Relay%20Test/Polar%20Relay%20Testing.htm
K4CHE

From navy.radio at gmail.com  Thu Jul 11 15:29:42 2024
From: navy.radio at gmail.com (Nick England)
Date: Thu, 11 Jul 2024 15:29:42 -0400
Subject: [GreenKeys] Polar Relays
In-Reply-To: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
Message-ID: <CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>

That's a great page, Breck! Thanks.

I found this AN/UGM-10 relay test set at Fair Radio - if anyone has a
manual, please let me know
https://www.navy-radio.com/tty/test/ugm10-1705-01.jpg

I also have a similar Stelma RTS-5 test set - ditto on needing a manual.
https://www.navy-radio.com/tty/test/stelma-relaytest-01.jpg

Why do I have two relay test sets? - Why do I have any teletype stuff?
Because it is all wonderful electromechanical magic......

Nick England K4NYW
www.navy-radio.com


On Thu, Jul 11, 2024 at 2:25?PM B. Smith <smithab11 at comcast.net> wrote:

> It seems that Polar Relays are becoming popular again. Info and a test
> jig can be found:
> http://k4che.com/Polar%20Relay%20Test/Polar%20Relay%20Testing.htm
> K4CHE
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to navy.radio at gmail.com
>
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From harold at w6iwi.org  Thu Jul 11 15:58:27 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Thu, 11 Jul 2024 12:58:27 -0700
Subject: [GreenKeys] Polar Relays
In-Reply-To: <CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
	<CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
Message-ID: <2aa19d79a05a3238b71792c66c07fd11.squirrel@hallikainen.org>



On Thu, July 11, 2024 11:24 am, B. Smith wrote:
> It seems that Polar Relays are becoming popular again. Info and a test
> jig can be found:
> http://k4che.com/Polar%20Relay%20Test/Polar%20Relay%20Testing.htm
> K4CHE

Their use in terminal units is interesting. I think they were generally
used as analog comparators with hysteresis (comparing the magnitude of the
mark and space tones and keying the loop with the result). The TU I built
in high school using 88 mH loading coils used a 12AX7 as a differential
amplifier which then drove a 6L6 keying the loop.

Harold
https://w6iwi.org



-- 
Not sent from an iPhone.

-- 
Not sent from an iPhone.

From w1an.dxusa at gmail.com  Thu Jul 11 17:37:59 2024
From: w1an.dxusa at gmail.com (John Spigel)
Date: Thu, 11 Jul 2024 21:37:59 +0000
Subject: [GreenKeys] Teletype Loops
In-Reply-To: <CAB55hNfMS4NxOEcoO1i-6g2eiZ27NcbjUY-r95nV1vnz7S4q=g@mail.gmail.com>
References: <CAJK86902bTHigw=w+2XYqwTT=HsAnbA18_Vz0C_aMOQ1a=M-SQ@mail.gmail.com>
	<CAB55hNfMS4NxOEcoO1i-6g2eiZ27NcbjUY-r95nV1vnz7S4q=g@mail.gmail.com>
Message-ID: <2bc0bd07-2b39-4c63-a07c-429cd91847b3@gmail.com>

If you have metal shells on the two wire T&S jacks you can put a heat 
shrink tubing sleeve over the shells leaving about an inch extra long to 
reinforce the cable end. This keeps similar to original TT design and 
reduces shocks.

Remember to use the fiber insulator washers for the 1/4" socket plugs or 
mount on insulated plates.

RG58 makes a durable cable and you probably already have some.

Always float the loop when possible. More than grounding in one place 
causes problems. Many terminal units have one end common to the panel.

73, John W1AN

On 11-Jul-24 17:23, Nick England wrote:
> Tom's photos reminded me of one advantage to using TRS jacks (as opposed 
> to my Navy patch panel with TS jacks) - you can grab hold of the plug 
> shell without worry!
> Cheers,
> Nick
> 
> 
> On Thu, Jul 11, 2024 at 12:45?PM Tom Hunter <tomhenryhunter at gmail.com 
> <mailto:tomhenryhunter at gmail.com>> wrote:
> 
> 
>     On what kind of patching to use, I would agree with Harold H. on
>     this one. In addition to tip/ring jacks I use a lot of
>     tip/ring/sleeve jacks. Like Harold, I buy 4 x 4 electrical boxes and
>     plates. Usually I mount two rows of three TRS jacks on them for two
>     loops. If I need more loops, I make more boxes and mount them side
>     by side. I use cat-5 for four loops.
> 
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to w1an.dxusa at gmail.com

From navy.radio at gmail.com  Thu Jul 11 20:06:13 2024
From: navy.radio at gmail.com (Nick England)
Date: Thu, 11 Jul 2024 20:06:13 -0400
Subject: [GreenKeys] N3CRK TTY streams are down
Message-ID: <CAB55hNd-Ycy26CYnwYZggFUEmqStHqMsYsTNy=P4pc=eMnHzVQ@mail.gmail.com>

Tom N3CRK says his ISP has crashed so his streams are off line.
He'll send a message when they get the problem fixed and he is back on line.
Tom maintains several streams at http://n3crk.com/

He also has some message files you can use for testing - these are still
available
http://n3crk.com/tones/tones.htm

Nick England K4NYW
www.navy-radio.com
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From tomhenryhunter at gmail.com  Thu Jul 11 21:31:38 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Thu, 11 Jul 2024 21:31:38 -0400
Subject: [GreenKeys] N3CRK Streams
Message-ID: <CAJK8691Rewjb1PVjvvHx+SPqOedDc1vJeADnvrhVkR_PTLDuSQ@mail.gmail.com>

My internet was up when I went out to work on a lawnmower. It was down when
I came in a few hours later.

It came back up a little while ago. So my streams should be back on. I am
checking my Icecast server a couple times a day.

My four streams are definitely hitting the server as I type.


Tom   N3CRK
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From tomhenryhunter at gmail.com  Thu Jul 11 22:17:17 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Thu, 11 Jul 2024 22:17:17 -0400
Subject: [GreenKeys] TRS Jacks
Message-ID: <CAJK86921_TkMZ2xP6LBPa4CZ2ofuXZiP_3_Yj50hXz+Uu2h6SQ@mail.gmail.com>

NIck and the group,

To give credit where credit is due - I got the idea for TRS jacks from
Harold Hallikainen. Most of my patching is still TR jacks.

My four loops from the radio building terminate on an SB6-GG in the cellar
where I work on my 14 and 15s. I have the four "set" jacks wired to a four
jack TRS panel and I am using TRS plugs on all machines there but I can
still do TR patching on the SB6-GG which very handy.The six jack TRS panel
Brings down two loops from  my den/hamshack upstairs.. The loops start up
there with a Dovetron  and my low tone Robot keyboard and are duplicated in
the cellar.

I also have a test loop from the workbench so I can set up a TU under test
and patch it into one of those two loops to burn it in for a few days. I
also have tones available at the workbench.

In my one picture you can see the four TRS set jacks and the unlabeled six
jack two loop box. The is also a three TRS jack box (not shown ) on a local
loop supply down there. So I have every loop I need in the cellar to  work
on Teletypes.

By the way - loop 1 is my news channel, Loop 2 is retype, loop 3 will be
ttyart as soon as I get a third modem working and loop 4 is just a test
loop for now but can be keyed by a relay.

Tom   N3CRK
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From harold at w6iwi.org  Fri Jul 12 20:14:38 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 12 Jul 2024 17:14:38 -0700
Subject: [GreenKeys] Solid copy on KPH
Message-ID: <32a0687aaa36a79ea3c02967816626e7.squirrel@hallikainen.org>

I'm getting very solid copy on KPH on the 12 MHz frequency right now.

https://www.radiomarine.org/mrhs-events

12585.5                               HENDY HF5000D A4        H OVER 2
PHASED ARRAY

Harold
https://w6iwi.org




-- 
Not sent from an iPhone.

From harold at w6iwi.org  Fri Jul 12 20:37:33 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 12 Jul 2024 17:37:33 -0700
Subject: [GreenKeys] [Fwd: Solid RATT copy on 12 MHz]
Message-ID: <8653eca7c0247ada8dbd628980838dfe.squirrel@hallikainen.org>




---------------------------- Original Message ----------------------------
Subject: Solid RATT copy on 12 MHz
From:    "Harold Hallikainen" <harold at w6iwi.org>
Date:    Fri, July 12, 2024 5:34 pm
To:      kph at radiomarine.org
--------------------------------------------------------------------------



Solid copy here in Tucson AZ!

Antenna: 30 foot vertical https://w6iwi.org/az/Vert30/
Transceiver: SEA 245 marine radio https://w6iwi.org/SEA245/
Terminal Unit: W6IWI DSP TU https://w6iwi.org/rtty/DspTU2/
Printer: Teletype model 15KSR https://w6iwi.org/rtty/

Video at https://w6iwi.org/tmp/20240712_171038.mp4 .

THANKS!

Harold
https://w6iwi.org



-- 
Not sent from an iPhone.


-- 
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From jeffg at junknet.net  Fri Jul 12 22:56:49 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Fri, 12 Jul 2024 22:56:49 -0400
Subject: [GreenKeys] [Fwd: Solid RATT copy on 12 MHz]
In-Reply-To: <8653eca7c0247ada8dbd628980838dfe.squirrel@hallikainen.org>
References: <8653eca7c0247ada8dbd628980838dfe.squirrel@hallikainen.org>
Message-ID: <2D8B16A5-3473-456F-BB26-C1B2891E81AB@junknet.net>

HOLY CRAP getting KPH in PA on the right coast! Fading a lot but its coming in!

Jeff
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> On Jul 12, 2024, at 8:37?PM, Harold Hallikainen via GreenKeys <greenkeys at mailman.qth.net> wrote:
> 
> ?
> 
> 
> ---------------------------- Original Message ----------------------------
> Subject: Solid RATT copy on 12 MHz
> From:    "Harold Hallikainen" <harold at w6iwi.org>
> Date:    Fri, July 12, 2024 5:34 pm
> To:      kph at radiomarine.org
> --------------------------------------------------------------------------
> 
> 
> 
> Solid copy here in Tucson AZ!
> 
> Antenna: 30 foot vertical https://w6iwi.org/az/Vert30/
> Transceiver: SEA 245 marine radio https://w6iwi.org/SEA245/
> Terminal Unit: W6IWI DSP TU https://w6iwi.org/rtty/DspTU2/
> Printer: Teletype model 15KSR https://w6iwi.org/rtty/
> 
> Video at https://w6iwi.org/tmp/20240712_171038.mp4 .
> 
> THANKS!
> 
> Harold
> https://w6iwi.org
> 
> 
> 
> --
> Not sent from an iPhone.
> 
> 
> --
> Not sent from an iPhone.
> 
> 
> --
> Not sent from an iPhone.
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net

From wa1lad at cox.net  Fri Jul 12 23:28:04 2024
From: wa1lad at cox.net (wa1lad wa1lad)
Date: Sat, 13 Jul 2024 03:28:04 +0000 (UTC)
Subject: [GreenKeys] [Fwd: Solid RATT copy on 12 MHz]
In-Reply-To: <2D8B16A5-3473-456F-BB26-C1B2891E81AB@junknet.net>
References: <8653eca7c0247ada8dbd628980838dfe.squirrel@hallikainen.org>
	<2D8B16A5-3473-456F-BB26-C1B2891E81AB@junknet.net>
Message-ID: <55854955.198512.1720841284417@mail.yahoo.com>

Had great copy on 8427 in RI !! 
 
  On Fri, Jul 12, 2024 at 22:57, Jeffrey Golas<jeffg at junknet.net> wrote:   HOLY CRAP getting KPH in PA on the right coast! Fading a lot but its coming in!

Jeff  
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From harold at w6iwi.org  Fri Jul 12 23:44:52 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Fri, 12 Jul 2024 20:44:52 -0700
Subject: [GreenKeys] [Fwd: Solid RATT copy on 12 MHz]
In-Reply-To: <55854955.198512.1720841284417@mail.yahoo.com>
References: <8653eca7c0247ada8dbd628980838dfe.squirrel@hallikainen.org>
	<2D8B16A5-3473-456F-BB26-C1B2891E81AB@junknet.net>
	<55854955.198512.1720841284417@mail.yahoo.com>
Message-ID: <ec323dd9a43fd302d3ca4bd6b09e401b.squirrel@hallikainen.org>

The 12 MHz signal faded out on me. I tried 6 MHz but only found what
sounded like fax. But solid RTTY copy on 8 MHz.

Amazing what a bit of power and a big antenna will do!

Harold
https://w6iwi.org


On Fri, July 12, 2024 8:28 pm, wa1lad wa1lad wrote:
> Had great copy on 8427 in RI !!
>
>   On Fri, Jul 12, 2024 at 22:57, Jeffrey Golas<jeffg at junknet.net> wrote:
> HOLY CRAP getting KPH in PA on the right coast! Fading a lot but its
> coming in!
>
> Jeff
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to harold at w6iwi.org


-- 
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From tomhenryhunter at gmail.com  Sat Jul 13 09:37:03 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Sat, 13 Jul 2024 09:37:03 -0400
Subject: [GreenKeys] 14 Ribbon help needed.
Message-ID: <CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw@mail.gmail.com>

I am playing with my 14 reperf again. when the ribbon is running from left
to right, the left spool is so tight I can not tum it with my fingers and
the typebars cannot press the ribbon against the tape.

The 14 Description manual is no help. Can anyone tell what provides back
tension on the ribbon spools and How do I reduce it?

The ribbon setup is similar to a 15. The 15 description is no help either.


Tom N3CRK
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From jhhaynes at earthlink.net  Sat Jul 13 13:26:37 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Sat, 13 Jul 2024 12:26:37 -0500 (CDT)
Subject: [GreenKeys] Polar Relays
In-Reply-To: <CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
	<CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
Message-ID: <7a487e84-9723-7bf4-fde7-c046bfb5b8c@earthlink.net>

A number of the early amateur RTTY receiving converters used polar relays
to combine the mark and space filter outputs, so they were sometimes
effectively part of the discriminator.  But they fell out of favor,
replaced by vacuum tubes directly keying the 60ma loops.  Maybe one
reason they went out of favor was hams ham-handedly fiddling with the
adjustments.  I remember the late Bob Weitbrecht had an insignia
depicting a polar relay with an axe chopping through it as part of his
campaign to get rid of them.

Of course in the telegraph biz polar relays were widely used, sometimes
because polar signaling was employed, other times as components of
repeaters or ways to get between the TTY signal on the wire lines
outside the machine and the 60 ma loop inside the machine.

A good reference is the AT&T Long Lines book, Principles of Electricity
applied to Telephone and Telegraph Work.  The 1953 edition is scanned and 
online https://long-lines.net/sources/att_principles_ocr.pdf

Way back the great E. H. Armstrong was proposing FSK for radiotelegraph
transmission.  Edwin H. Armstrong {\it Methods of
Reducing the Effect of Atmospheric Disturbances.} Proceedings of
the I.R.E., January 1928, p. 15. (discussion, p. 27)
This was before he developed wide band FM for high-fidelity noise free
broadcasting.  He seems to have hoped that the desired signals would
be distinguishable as mark or space, while things like static crashes
would affect both mark and space equally and could be cancelled out.
John Carson of AT&T showed mathematically that this would not in fact
work.  John R. Carson {\it The Reduction of
Atmospheric Disturbances.} Proceedings of the I.R.E., July 1928,
p. 966.  However Armstrong's ink recorder traces accompanying his
paper showed substantially cleaner signals from FSK.  Perhaps the
mathematical explanation is that FSK uses approximately twice the
transmitter power of CW because the transmitter is on all the time.

At roughly the same time Lawrence Schmitt at Teletype was experimenting
with radioteletype and proposed FSK for essentially the same reason,
that noise would cancel because it affected both mark and space channels
equally.  There is no reason to suspect that Schmitt and Armstrong were
aware of each other's work.  Nothing much came of Schmitt's work because
about that time AT&T bought Teletype.  AT&T considered matters of
telegraph transmission to be on their turf; all they wanted from
Teletype was the printing telegraph machinery.  Schmitt's patent shows
a polar relay being used to compare the mark and space signals and
deliver a decision.

We know Teletype sets were offered with built-in polar relays at
the customer's request.  The simplest sets, without polar relays,
were usable on neutral 60ma or 20ma loops from the outside world.
A polar relay could help clean up signals on neutral loops and was
essential if the incoming signals were bipolar.  A polar relay could
also be part of some auxiliary scheme such as a busy line detector
or a motor control arrangement.

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man

From jhhaynes at earthlink.net  Sat Jul 13 14:18:15 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Sat, 13 Jul 2024 13:18:15 -0500 (CDT)
Subject: [GreenKeys] Polar Relays II
In-Reply-To: <CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
	<CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
Message-ID: <3d476ce-61cb-bfa0-f4d4-1b3c529fd376@earthlink.net>


When I was a student and had a summer job at Teletype one of the little
jobs my boss had in his desk drawer was to look into a solid state
replacement for the polar relay.  At the time we didn't have any good
high voltage transistors that could handle a 120V loop; there were
some circuits that put two or more transistors in series.  It was
many years later that I realized I failed to ask the right questions,
"Why do we want a solid state replacement for the polar relay?  what
problems are we trying to solve?"

I was aware that auto radios of the period were using power transistors
for the audio amplifiers, operating with a supply voltage of 12 volts.
So I thought instead of 120V 60 ma why don't we use 12V 600ma where
the readily available power transistors were well suited.  It turned
out my boss had already thought of this, but he didn't say anything,
but helped me get some Model 28 selector coils wound for 1/10 the normal
number of turns.  Of course that worked fine on a local loop.

The other influence on my thinking was that one of the engineers had
worked out a solid state regenerative repeater.  If that had to be
interfaced to 60ma loops it would be a lot worse than going directly
at low voltage to the 12V selector magnet driver.  Other transistorized
accessories could likewise benefit from a low-voltage interface.
So I proposed an internal set design where every selector magnet would
have its own transistor driver and all the local switching would be
done at low voltage.  Then the interface to the outside world could
be a polar relay or anything else we could devise that would meet the
needs of the transmission scheme - this was again putting transmission
back on AT&T's turf.

I failed to sell that concept.  My boss thought the regenerative
repeater would be too costly to interest any customers, whereas with
my RTTY experience I thought it would be a popular item for the
military especially.  This was several years before Bell System data
sets and other things using RS-232 had come into existence.

A couple of years later I had a visit to Teletype and was informed that
the low voltage selector magnet driver was going to be used in the
Model 32/33/35 products.  Someone smarter than me had redesigned the
circuit from a simple saturated transistor switch to one using the
constant-current properties of the transistor, and had decided upon
20 volts 500 ma as the selector magnet loop level.  Perhaps this
was a good decision since the new products had to operate at 110 baud
instead of 45 or 50 or 75.  I've seen constant-current drivers for
60ma selectors that operate at a lower voltage than 120.

So, anyway, I didn't solve the problem of the polar relay, whatever
that problem was seen to be.  I was focused more on internal design of
the set rather than connecting it to the outside world.

I remember a passage from MIL-STD-188 concerning polar relay replacements.
It required that they have the same features as real polar relays,
including isolation between coil and contacts, multiple "coils" that
added their effects, and "side stable" which meant that with no current
in the coils the relay would sit in either mark or space condition
wherever it had been left.  Those are pretty tough requirements to meet,
so that is probably why polar relay development continued.  The
Automatic Electric relay which Western Union sorely needed to replace
its antique relays, several other competing makes of relays, the 314
relay to replace the 255A...

Just as an aside the AN/FGC-5 vacuum tube time division multiplex had
a really odd substitute for the polar relay.  There was a solenoid coil
in the line circuit, and it surrounded a gas diode.  With no current in
the coil the voltage in the diode circuit was sufficient to fire the
diode into conduction.  But with enough current in the coil the magnetic
field prevented the gas tube from going into conduction.

In the AN/UGC-1 and AN/UGC-3 transistorized time division multiplex
systems we used mercury-wetted contact relays.

And, finally, Western Union and the military and others all went to
low-voltage handling for TTY signals, converting to high voltage loops
only when necessary.  MIL-STD-188 and Western Union Technical Review
are good sources.

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man

From jeffg at junknet.net  Sat Jul 13 16:25:16 2024
From: jeffg at junknet.net (Jeffrey Golas)
Date: Sat, 13 Jul 2024 16:25:16 -0400
Subject: [GreenKeys] 14 Ribbon help needed.
In-Reply-To: <CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw@mail.gmail.com>
References: <CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw@mail.gmail.com>
Message-ID: <8DBA948E-85EA-40B0-9EE8-EFCF5208D9A5@junknet.net>

They should be free...Id check for dried grease.

Jeff

> On Jul 13, 2024, at 9:37?AM, Tom Hunter <tomhenryhunter at gmail.com> wrote:
> 
> ?
> I am playing with my 14 reperf again. when the ribbon is running from left to right, the left spool is so tight I can not tum it with my fingers and the typebars cannot press the ribbon against the tape.
> 
> The 14 Description manual is no help. Can anyone tell what provides back tension on the ribbon spools and How do I reduce it?
> 
> The ribbon setup is similar to a 15. The 15 description is no help either.
> 
> 
> Tom N3CRK
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net

From harold at w6iwi.org  Sat Jul 13 16:33:03 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Sat, 13 Jul 2024 13:33:03 -0700
Subject: [GreenKeys] 14 Ribbon help needed.
In-Reply-To: <8DBA948E-85EA-40B0-9EE8-EFCF5208D9A5@junknet.net>
References: <CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw@mail.gmail.com>
	<8DBA948E-85EA-40B0-9EE8-EFCF5208D9A5@junknet.net>
Message-ID: <25fc5941f7fb34c0576c7ff9d05d46e7.squirrel@hallikainen.org>

Also, is the ribbon reversing mechanism properly disengaging the gear for
the other direction? Maybe it's trying to pull both ways at once.

Good luck!

Harold
https://w6iwi.org

On Sat, July 13, 2024 1:25 pm, Jeffrey Golas wrote:
> They should be free...Id check for dried grease.
>
> Jeff
>




-- 
Not sent from an iPhone.

From tomhenryhunter at gmail.com  Sat Jul 13 18:43:53 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Sat, 13 Jul 2024 18:43:53 -0400
Subject: [GreenKeys] 14 Ribbon Problem Fixed
Message-ID: <CAJK8691Nu-LFEQKm0gnWBYthS-VUxswaNpJNP=Cs9hrEXH=NZQ@mail.gmail.com>

I found the trouble with my 14 reperf ribbon feed. The gear at the far end
of the spool shaft was jammed on too tight and creating too much friction.
I loosened the gear, moved it a tiny bit, re-tightened and oiled the space
behind it..

The left spool doesn't bind and the reperf prints perfectly now.

I have to thank Jim Cooper for suggesting I take another look at it.



Tom   N3CRK
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From harold at w6iwi.org  Sat Jul 13 21:31:09 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Sat, 13 Jul 2024 18:31:09 -0700
Subject: [GreenKeys] Polar Relays II
In-Reply-To: <3d476ce-61cb-bfa0-f4d4-1b3c529fd376@earthlink.net>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
	<CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
	<3d476ce-61cb-bfa0-f4d4-1b3c529fd376@earthlink.net>
Message-ID: <aff40dea43a6c275fecbf2e47e8feaf1.squirrel@hallikainen.org>

Thanks for all the info on polar relays! When in high school, I had a TU
that used a polar relay to compare the mark and space tone levels. I also
had a Teletype with a polar relay in back. The wiring harnesses in a
Teletype got really complex to allow for all the options. Basic operation
would require just 6 wires (2 each for motor, keyboard, and selector
magnets). But the machines also get a lot more complicated.

You mention the use of gas discharge tubes in some equipment. I remember
seeing NE-2 lamps in some terminal units. For example, the terminal units
on page 299 of the 1966 Amateur Handbook has a couple NE-2s that provide
hysteresis in the circuit.

To me, the most practical use of the polar relay is to interface a polar
telegraph circuit to the selector magnets in a machine.

Thanks for all the great history!

Harold
https://w6iwi.org



From jhhaynes at earthlink.net  Sat Jul 13 23:54:28 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Sat, 13 Jul 2024 22:54:28 -0500 (CDT)
Subject: [GreenKeys] Polar Relays II
In-Reply-To: <aff40dea43a6c275fecbf2e47e8feaf1.squirrel@hallikainen.org>
References: <9e2adfef-bf6e-4e55-b0f5-25fb720f4744@comcast.net>
	<CAB55hNeJ5p_j2J4-+QSPZrKifHEfk7tuRci+8s-bPJx4JbOznQ@mail.gmail.com>
	<3d476ce-61cb-bfa0-f4d4-1b3c529fd376@earthlink.net>
	<aff40dea43a6c275fecbf2e47e8feaf1.squirrel@hallikainen.org>
Message-ID: <aa63d6b1-d942-447-d8c1-b5ae2df83d0@earthlink.net>

On Sat, 13 Jul 2024, Harold Hallikainen via GreenKeys wrote:
> Teletype got really complex to allow for all the options. Basic operation
> would require just 6 wires (2 each for motor, keyboard, and selector

Or, if you follow Irv Hoff's dictum, just 2 wires for the selector and
keyboard in series.

> You mention the use of gas discharge tubes in some equipment. I remember
> seeing NE-2 lamps in some terminal units. For example, the terminal units
> on page 299 of the 1966 Amateur Handbook has a couple NE-2s that provide
> hysteresis in the circuit.

Yeah, we made a lot of use of little neon lamps for hysteresis and
sometimes just for dropping voltage by a fixed amount without attenuating
the signal.

The ones in the FGC-5 were much larger,  in fact they looked a lot like
VR tubes except for being cylindrical rather than "tube shaped".  But
I guess the voltage drop was a lot less than a VR tube provided.

>
> To me, the most practical use of the polar relay is to interface a polar
> telegraph circuit to the selector magnets in a machine.

Yes, or for making up things like duplex sets or repeaters.  Lots of
circuits in the Long Lines green book about various operating circuits.
But all that is the stuff of telegraph transmission, not of running a
RTTY station.  And a lot of that went away when DC operation of TTY
signals was replaced by things like tone modulated carrier channels.

>
> Thanks for all the great history!
Glad you enjoy it.

In the telephone system, particularly in the days of open wire lines,
there was some use of composite sets.  A composite set is a set of high
pass and low pass filters applied to a pair of wires.  The high pass
portion is used for voice and the low pass provides for two DC telegraph
circuits with ground return.  The telegraph circuits can be duplexed so
they actually serve as four telegraph circuits, two in each direction
of transmission.

Since the voice portion of the setup won't pass the usual 20 Hz ringing 
signals there were things called composite ringers that sent and received 
135 Hz ringing and translated it to 20 Hz for the switchboard.  And later 
there was 1 KHz ringing for the same reason.  I remember being in the old
manual telephone office in my home town and hearing the composite ringers
working: click-click-buzzzz.  Which says there must have been some
composited telegraph circuits in that office, but I don't know who the
customers were.  Probably the newspapers and the press wire services.


From nagle at animats.com  Sat Jul 13 19:53:32 2024
From: nagle at animats.com (John Nagle)
Date: Sat, 13 Jul 2024 16:53:32 -0700
Subject: [GreenKeys] 14 Ribbon help needed.
In-Reply-To: <mailman.10650.1720894705.20691.greenkeys@mailman.qth.net>
References: <mailman.10650.1720894705.20691.greenkeys@mailman.qth.net>
Message-ID: <21e6fb3f-afc1-4fca-9309-56c1d2bc88b1@animats.com>

On 7/13/24 11:18, greenkeys-request at mailman.qth.net wrote:
> Message: 18
> Date: Sat, 13 Jul 2024 09:37:03 -0400
> From: Tom Hunter<tomhenryhunter at gmail.com>
> To:GreenKeys at mailman.qth.net
> Subject: [GreenKeys] 14 Ribbon help needed.
> Message-ID:
> 	<CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> I am playing with my 14 reperf again. when the ribbon is running from left
> to right, the left spool is so tight I can not tum it with my fingers and
> the typebars cannot press the ribbon against the tape.
> 
> The 14 Description manual is no help. Can anyone tell what provides back
> tension on the ribbon spools and How do I reduce it?
> 
> The ribbon setup is similar to a 15. The 15 description is no help either.

     The ribbon advance mechanism there is a bit complicated.

Basic checks:

     First, does the ribbon have an eyelet to push the ribbon
reversing arm? The ribbon has to have an eyelet near each end,
and those eyelets should always be near the spool, not past the
ribbon reversing arm.

     Second, to test the ribbon reversing mechanism, turn the
motor by hand counterclockwise from the fan end and watch the
mechanism cycle. If you press on one of the ribbon reversing arms
(Figure 37) while cranking the motor, the ribbon feed shaft
(figs. 41-42) should slide sideways, shifting gears to disengage
one ribbon spool shaft and engage the other one. See the bevel
gears at the end of each ribbon spool shaft? Only one of those
sets should be engaged at a time.

    The ribbon feed shaft can only slide sideways during one part
of the machine cycle. If you hand crank the motor, you can find the
brief part of the cycle where it's unlocked. Check that it moves
freely. If it's stuck, clean and lubricate the parts involved
moving it sideways. See Fig. 42. Machines oiled with lubricants
which evaporate and leave crud behind (like WD-40) will have
this problem. The Teletype spec specifies a whale oil blend, but
synthetic 0W-20 motor oil works fine.

If the mechanism is undamaged, this is probably just a lubrication
problem.

References:

    http://aetherltd.com/public/model14manuals/127B-Iss3.pdf
    See "Ribbon reverse arm shaft adjustments", etc.,
    p. 21 in original.

				John Nagle

From duncanancy at earthlink.net  Sun Jul 14 12:14:08 2024
From: duncanancy at earthlink.net (Duncan Brown)
Date: Sun, 14 Jul 2024 12:14:08 -0400
Subject: [GreenKeys] 14 Ribbon help needed.
In-Reply-To: <21e6fb3f-afc1-4fca-9309-56c1d2bc88b1@animats.com>
References: <mailman.10650.1720894705.20691.greenkeys@mailman.qth.net>
	<21e6fb3f-afc1-4fca-9309-56c1d2bc88b1@animats.com>
Message-ID: <ed1b9e78-9d27-480c-8315-a6b988044927@earthlink.net>

For a Teletype Corp. machine, if you have a ribbon without the grommets, 
you can just tie a knot in each end of the ribbon.? Just make sure the 
knot is on the spool side of the ribbon reversing arm.

(Kleinschmidt machines use a special spool and you must wind a new 
ribbon onto the old spool.)

Have fun,

Duncan
K2OEQ


On 7/13/2024 7:53 PM, John Nagle via GreenKeys wrote:
> On 7/13/24 11:18, greenkeys-request at mailman.qth.net wrote:
>> Message: 18
>> Date: Sat, 13 Jul 2024 09:37:03 -0400
>> From: Tom Hunter<tomhenryhunter at gmail.com>
>> To:GreenKeys at mailman.qth.net
>> Subject: [GreenKeys] 14 Ribbon help needed.
>> Message-ID:
>> ????<CAJK86919giB6t+5x2NyZO11pTKxav7DKwwpLqqFsuF9G9n7dBw at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> I am playing with my 14 reperf again. when the ribbon is running from 
>> left
>> to right, the left spool is so tight I can not tum it with my fingers 
>> and
>> the typebars cannot press the ribbon against the tape.
>>
>> The 14 Description manual is no help. Can anyone tell what provides back
>> tension on the ribbon spools and How do I reduce it?
>>
>> The ribbon setup is similar to a 15. The 15 description is no help 
>> either.
>
> ??? The ribbon advance mechanism there is a bit complicated.
>
> Basic checks:
>
> ??? First, does the ribbon have an eyelet to push the ribbon
> reversing arm? The ribbon has to have an eyelet near each end,
> and those eyelets should always be near the spool, not past the
> ribbon reversing arm.
>
> ??? Second, to test the ribbon reversing mechanism, turn the
> motor by hand counterclockwise from the fan end and watch the
> mechanism cycle. If you press on one of the ribbon reversing arms
> (Figure 37) while cranking the motor, the ribbon feed shaft
> (figs. 41-42) should slide sideways, shifting gears to disengage
> one ribbon spool shaft and engage the other one. See the bevel
> gears at the end of each ribbon spool shaft? Only one of those
> sets should be engaged at a time.
>
> ?? The ribbon feed shaft can only slide sideways during one part
> of the machine cycle. If you hand crank the motor, you can find the
> brief part of the cycle where it's unlocked. Check that it moves
> freely. If it's stuck, clean and lubricate the parts involved
> moving it sideways. See Fig. 42. Machines oiled with lubricants
> which evaporate and leave crud behind (like WD-40) will have
> this problem. The Teletype spec specifies a whale oil blend, but
> synthetic 0W-20 motor oil works fine.
>
> If the mechanism is undamaged, this is probably just a lubrication
> problem.
>
> References:
>
> ?? http://aetherltd.com/public/model14manuals/127B-Iss3.pdf
> ?? See "Ribbon reverse arm shaft adjustments", etc.,
> ?? p. 21 in original.
>
> ??????????????? John Nagle
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: 
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: 
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: 
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: 
>>>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to duncanancy at earthlink.net


From tomhenryhunter at gmail.com  Sun Jul 14 15:28:23 2024
From: tomhenryhunter at gmail.com (Tom Hunter)
Date: Sun, 14 Jul 2024 15:28:23 -0400
Subject: [GreenKeys] 14 Ribbon problem
Message-ID: <CAJK8690UQNGBcdzgUS4+yRjQn0yURPQiH_2cZegRBYR9M3ZN-g@mail.gmail.com>

I appreciate people who are trying to help me. But so many of you did not
read my message clearly and are giving me solutions for problems I did not
have.

I made a follow up post saying I found the problem, what is was and how I
fixed it. So no more help is needed.

But thanks all for trying.

I have a 15 problem now, but I am going to try to figure that out myself
since I must not explain things clearly enough.


Tom N3CRK
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From w2hx at w2hx.com  Sun Jul 14 16:15:40 2024
From: w2hx at w2hx.com (W2HX)
Date: Sun, 14 Jul 2024 20:15:40 +0000
Subject: [GreenKeys] Fw: [Army-Radios] Free Teletype Model 15,
	28 and 110 multiple units
In-Reply-To: <1227.1720986396234687502@groups.io>
References: <672684317.3157056.1710743139766@mail.yahoo.com>
	<1227.1720986396234687502@groups.io>
Message-ID: <588c3a43-77e2-4ad6-adf0-953c776a6976@w2hx.com>

prcradio at yahoo.com

Sent from Nine<http://www.9folders.com/>

________________________________
From: "Mike via groups.io" <prcradio=yahoo.com at groups.io>
Sent: Sunday, July 14, 2024 3:46 PM
To: main at Army-Radios.groups.io
Subject: Re: [Army-Radios] Free Teletype Model 15, 28 and 110 multiple units


I?ll try one last time to help a friend dispose of his spare teletype equipment and here are some pics of the stuff. It?s all free, you pick up in San Pedro, CA and you must take all or nothing. If you only need a few pieces then give the rest to friends or sell online, etc. The main point is my friend need his storage space back and it all has to go very soon. I can help carry the stuff to your car or truck if needed.

If interested please contact me, prcradio at yahoo.

Mike

[cid:attach_0_17E22C025AE5253F_1227 at groups.io][cid:attach_2_17E22C025AF23A44_1227 at groups.io][cid:attach_1_17E22C025AEC9B5E_1227 at groups.io][cid:attach_10_17E22C025B23AAA3_1227 at groups.io][cid:attach_9_17E22C025B1CA703_1227 at groups.io][cid:attach_8_17E22C025B153F26_1227 at groups.io][cid:attach_7_17E22C025B0F88C6_1227 at groups.io][cid:attach_6_17E22C025B09C0C7_1227 at groups.io][cid:attach_5_17E22C025B036B89_1227 at groups.io][cid:attach_4_17E22C025AFE0C27_1227 at groups.io][cid:attach_3_17E22C025AF92E44_1227 at groups.io]





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From panhedmike at aol.com  Sun Jul 14 21:34:14 2024
From: panhedmike at aol.com (Michael Kley)
Date: Mon, 15 Jul 2024 01:34:14 +0000 (UTC)
Subject: [GreenKeys] polar relay test set manual
References: <1838452497.329012.1721007254105.ref@mail.yahoo.com>
Message-ID: <1838452497.329012.1721007254105@mail.yahoo.com>

With the recent traffic about polar relays, I thought someone might be interested in the following manual. If I did it right the following link will take you to a downloadable copy of TM 11-2513, the manual for polar relay test sets I-193-A, B & C. It is used for the testing and adjusting of 255 type relays. In a quick search, I did not find it anywhere on the web. Hopefully someone will find it useful.
Mike Kley

TM 11-2513_March 1952.pdf


| 
| 
|  | 
TM 11-2513_March 1952.pdf


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From paul0926 at comcast.net  Sun Jul 14 22:49:36 2024
From: paul0926 at comcast.net (Paul Heller)
Date: Sun, 14 Jul 2024 20:49:36 -0600
Subject: [GreenKeys] [Army-Radios] Free Teletype Model 15,
 28 and 110 multiple units
In-Reply-To: <588c3a43-77e2-4ad6-adf0-953c776a6976@w2hx.com>
References: <672684317.3157056.1710743139766@mail.yahoo.com>
	<1227.1720986396234687502@groups.io>
	<588c3a43-77e2-4ad6-adf0-953c776a6976@w2hx.com>
Message-ID: <896B0851-C9C4-4977-80D1-9EDFDA1F01EF@comcast.net>

Thanks for sharing. Maybe someone grabs it, maybe not. Hopefully yes.

[Beginning of rant]

If you only need a few pieces then give the rest to friends or sell online, etc ? sounds like he wants to move his problem to someone else. 

I hate "take all or nothing" deals. That means he will likely need to trash all of it (more work for him) instead of some of it. How does anyone win that way? 

[End of rant]

Paul



> On Jul 14, 2024, at 2:15 PM, W2HX <w2hx at w2hx.com> wrote:
> 
> prcradio at yahoo.com
> 
> Sent from Nine <http://www.9folders.com/>
> 
> From: "Mike via groups.io" <prcradio=yahoo.com at groups.io>
> Sent: Sunday, July 14, 2024 3:46 PM
> To: main at Army-Radios.groups.io
> Subject: Re: [Army-Radios] Free Teletype Model 15, 28 and 110 multiple units
> 
> I?ll try one last time to help a friend dispose of his spare teletype equipment and here are some pics of the stuff. It?s all free, you pick up in San Pedro, CA and you must take all or nothing. If you only need a few pieces then give the rest to friends or sell online, etc. The main point is my friend need his storage space back and it all has to go very soon. I can help carry the stuff to your car or truck if needed.
> 
> If interested please contact me, prcradio at yahoo.
> 
> Mike
> 
> 
> <D403EEB6-DE7B-4463-AB34-17B8F3DD8E28.jpeg><2F2286D9-73B8-4AD5-9BA7-3845D038FC9D.jpeg><C06AB059-5F00-46A3-A321-8A33D6020B07.jpeg><ABD767B2-7905-4DBB-91F8-5715FD1B2E4B.jpeg><D2438D07-9E82-4394-872F-3B45D48470E1.jpeg><AA389C69-7BF7-4F10-83CA-02469586397F.jpeg><E7A09400-1878-45CE-AC7C-000BEA673FD9.jpeg><16D6A69F-3C38-4223-B175-2FF875E761C1.jpeg><6813E364-B440-436B-B687-97E13BF0016E.jpeg><B6E01AA8-F99C-42C0-BEFB-8FA467A7CD1A.jpeg><AA220C1A-3023-4F7F-B8ED-DF24698CDBA6.jpeg>
> 
>  
>  
> _._,_._,_
> Groups.io Links:
> You receive all messages sent to this group.
> 
> View/Reply Online (#72367) <https://army-radios.groups.io/g/main/message/72367> | Reply To Group <mailto:main at Army-Radios.groups.io?subject=Re:%20Re%3A%20%5BArmy-Radios%5D%20Free%20Teletype%20Model%2015%2C%2028%20and%20110%20multiple%20units> | Reply To Sender <mailto:prcradio at yahoo.com?subject=Private:%20Re:%20Re%3A%20%5BArmy-Radios%5D%20Free%20Teletype%20Model%2015%2C%2028%20and%20110%20multiple%20units> | Mute This Topic <https://groups.io/mt/104977592/91829> | New Topic <https://army-radios.groups.io/g/main/post> 
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> 
> _._,_._,_
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>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
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> Message delivered to paul0926 at comcast.net

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From jhhaynes at earthlink.net  Sun Jul 14 23:23:14 2024
From: jhhaynes at earthlink.net (Jim Haynes)
Date: Sun, 14 Jul 2024 22:23:14 -0500 (CDT)
Subject: [GreenKeys] And another way to do the switching in your RTTY station
Message-ID: <a08dcc9-976-2ae6-2521-fda7f1ffa16c@earthlink.net>


I just remembered that in the early days of amateur RTTY - back then all
the operation was on VHF using audio FSK tones.  So some guys instead of
switching the loops had a demodulator attached to the printer and did
the switching at audio levels of the AFSK signal.  Much too cumbersome
for today's installations.

Back in the late 1950s I often got into a round table of RTTY friends
that met almost every night.  Sometimes we couldn't get copy on all
the participants on a single amateur band, so we would have one or more
stations off on a different band from the rest of the group.  For that
purpose we wanted the terminal unit to receive incoming over-the-air
signals and pass them on to the transmitter so the other participants
could copy them.

Jim W6JVE

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man

From hanyou at xsmail.com  Sun Jul 14 23:29:56 2024
From: hanyou at xsmail.com (E.)
Date: Sun, 14 Jul 2024 22:29:56 -0500
Subject: [GreenKeys] [Army-Radios] Free Teletype Model 15,
 28 and 110 multiple units
In-Reply-To: <896B0851-C9C4-4977-80D1-9EDFDA1F01EF@comcast.net>
References: <672684317.3157056.1710743139766@mail.yahoo.com>
	<1227.1720986396234687502@groups.io>
	<588c3a43-77e2-4ad6-adf0-953c776a6976@w2hx.com>
	<896B0851-C9C4-4977-80D1-9EDFDA1F01EF@comcast.net>
Message-ID: <BC0415CF-ADC7-496B-A4FA-8F664ABC6BD1@xsmail.com>


I?m the same Paul ? I?d rather take a little more effort to preserve than to take the easy way out and trash (along with the threats that it?s all gott?a go!).  I mean, you can?t find these things at the corner drugstore anymore (relatively speaking)!?..


> On Jul 14, 2024, at 9:49?PM, Paul Heller <paul0926 at comcast.net> wrote:
> 
> Thanks for sharing. Maybe someone grabs it, maybe not. Hopefully yes.
> 
> [Beginning of rant]
> 
> If you only need a few pieces then give the rest to friends or sell online, etc ? sounds like he wants to move his problem to someone else. 
> 
> I hate "take all or nothing" deals. That means he will likely need to trash all of it (more work for him) instead of some of it. How does anyone win that way? 
> 
> [End of rant]
> 
> Paul

From duncanancy at earthlink.net  Tue Jul 16 19:51:43 2024
From: duncanancy at earthlink.net (Duncan Brown)
Date: Tue, 16 Jul 2024 19:51:43 -0400
Subject: [GreenKeys] 14 Ribbon help needed.
In-Reply-To: <6693FCE3.20574.483933A8@JIM.W2JC.GMAIL.COM>
References: <mailman.10650.1720894705.20691.greenkeys@mailman.qth.net>
	<21e6fb3f-afc1-4fca-9309-56c1d2bc88b1@animats.com>
	<ed1b9e78-9d27-480c-8315-a6b988044927@earthlink.net>
	<6693FCE3.20574.483933A8@JIM.W2JC.GMAIL.COM>
Message-ID: <c82890cc-a589-44ed-beae-794f1b740dab@earthlink.net>

Thanks!!

Duncan
K2OEQ

On 7/14/2024 12:29 PM, Jim Cooper wrote:
> On 14 Jul 2024 at 12:14, Duncan Brown wrote:
> > (Kleinschmidt machines use a special spool and you must wind a new
> > ribbon onto the old spool.)
> I feel a bit self-concious always responding to this sort of
> posting with my flyer, but if people don't know about them
> I can't solve their problem !
> These ribbons HAVE the proper spools for Kleinschmidt,
> so no need for the messy transfer of a new ribbon onto the
> old spool ...?? ;)
> graphic
> ---
> TTY supplies and equipment --
> Ribbons, paper, tape, etc. & some equipment
> visit https://bit.ly/TTY-stuff
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From w9ddd at tapr.org  Sat Jul 20 17:52:26 2024
From: w9ddd at tapr.org (John, W9DDD)
Date: Sat, 20 Jul 2024 16:52:26 -0500
Subject: [GreenKeys] Excess inventory
Message-ID: <557b1a81-31a9-4147-b448-da56366091ab@tapr.org>

A.  Any interest in a AN/UGC-74?  Not mine, located in St Louis area.  
Not sure, but suspect current owner might be coerced to ship.  Contact 
me for more information.

B.  The following is an answer-back drum consisting of the following, 
sorry no code blades.  Available for postage.

1-164161 Drum, Message

2-164162 Ring, "O"

1-161163 Blade, Stop

-- 
---
----
The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD


From w9ddd at tapr.org  Sat Jul 20 20:54:42 2024
From: w9ddd at tapr.org (John, W9DDD)
Date: Sat, 20 Jul 2024 19:54:42 -0500
Subject: [GreenKeys] Excess inventory
In-Reply-To: <557b1a81-31a9-4147-b448-da56366091ab@tapr.org>
References: <557b1a81-31a9-4147-b448-da56366091ab@tapr.org>
Message-ID: <9b995c1d-6dc9-15bb-6067-6de8428f6e2d@tapr.org>

To those who had questions about the ugc-74, I forwarded your questions 
to the owner.  He may have to open it up to refresh his memory.  I 
didn't realize there were that many variations.


On 7/20/2024 4:52 PM, John, W9DDD wrote:
> A.  Any interest in a AN/UGC-74?  Not mine, located in St Louis area.  
> Not sure, but suspect current owner might be coerced to ship.  Contact 
> me for more information.
>
> B.  The following is an answer-back drum consisting of the following, 
> sorry no code blades.  Available for postage.
>
> 1-164161 Drum, Message
>
> 2-164162 Ring, "O"
>
> 1-161163 Blade, Stop
>

-- 
---
----
The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD


From legalize at xmission.com  Mon Jul 22 18:36:27 2024
From: legalize at xmission.com (Richard)
Date: Mon, 22 Jul 2024 16:36:27 -0600
Subject: [GreenKeys] Flexowriters cheap to good home (Salt Lake City, UT)
Message-ID: <E1sW1dr-0038rX-Uu@shell.xmission.com>

Hi Gang,

I have some Friden Flexowriters that I rescued from the Black Hole
Surplus in Los Alamos, NM a bunch of years (>10? egads) ago.

They need the usual mechanical restoration (degunking, cleaning,
calibration, etc.) that you would expect from equipment that's been
unused and in storage for multiple decades.

I rescued them because I thought they were worth saving, but they're a
little far from my wheel house (computer graphics), so they're
probably better off finding a new home with someone that has more
passion for them than I do.

Honestly, I can't even remember what I paid for them, but it was
probably like $20 ea. or less.  I have two models, the "older" model
that was used as an IBM console and a "newer" model that looks more
like a Selectric style electric typewriter.

The downside is that you have to come get them :) from me as they are
large, semi-fragile and not really amenable to naked shipping.  There
is an option to deliver them to someone at VCFmw in September as well.

I'm more interested in them finding a proper home than "making a
profit".

Feel free to email me directly legalize at xmission.com but I'll keep an
eye on the list.

-- Richard

-- 
"The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline>
             The Terminals Wiki <http://terminals-wiki.org>
     The Computer Graphics Museum <http://ComputerGraphicsMuseum.org>
  Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com>

From paul0926 at comcast.net  Fri Jul 26 14:13:17 2024
From: paul0926 at comcast.net (Paul Heller)
Date: Fri, 26 Jul 2024 12:13:17 -0600
Subject: [GreenKeys] Nice looking Model 32
Message-ID: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>

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From wa3frp at gmail.com  Fri Jul 26 15:09:14 2024
From: wa3frp at gmail.com (Russ Miller)
Date: Fri, 26 Jul 2024 15:09:14 -0400
Subject: [GreenKeys] Nice looking Model 32
In-Reply-To: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
References: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
Message-ID: <E326E418-FF49-4FCC-B2D2-6D71DC96C7B5@gmail.com>

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From teletypeparts at comcast.net  Fri Jul 26 15:11:03 2024
From: teletypeparts at comcast.net (WAYNE)
Date: Fri, 26 Jul 2024 15:11:03 -0400 (EDT)
Subject: [GreenKeys] Nice looking Model 32
In-Reply-To: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
References: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
Message-ID: <158442984.75020.1722021063170@connect.xfinity.com>

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From dave.g4ugm at gmail.com  Fri Jul 26 16:11:21 2024
From: dave.g4ugm at gmail.com (dave.g4ugm at gmail.com)
Date: Fri, 26 Jul 2024 21:11:21 +0100
Subject: [GreenKeys] Nice looking Model 32
In-Reply-To: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
References: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
Message-ID: <3ac701dadf97$fc07db40$f41791c0$@gmail.com>

Well its been sold as :-

 

"perfect for display purposes or as a unique conversation starter"

 

I see the spacebar is depressed, so I wonder if something is amiss with the
innards.

. I would say "aspirational pricing" as decided during a long "mindfulness"
session.

 

Dave

G4UGM 

 

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of Paul Heller via GreenKeys
Sent: Friday, July 26, 2024 7:13 PM
To: Greenkeys <greenkeys at mailman.qth.net>
Subject: [GreenKeys] Nice looking Model 32

 

The seller is smoking something. 

 






 
<https://www.ebay.com/itm/126534248064?mkcid=16&mkevt=1&mkrid=711-127632-235
7-0&ssspo=GojeMjv7QNK&sssrc=4429486&ssuid=tBxVpSdyQp2&var=&widget_ver=artemi
s&media=COPY> Telex Machine - Model 32 - PICK UP ONLY

 
<https://www.ebay.com/itm/126534248064?mkcid=16&mkevt=1&mkrid=711-127632-235
7-0&ssspo=GojeMjv7QNK&sssrc=4429486&ssuid=tBxVpSdyQp2&var=&widget_ver=artemi
s&media=COPY> ebay.com

 

I think the price needs to be divided by 10. 

 

Paul
W2TTY

ITTY:                    HTTP://INTERNET-TTY.NET:8000/ITTY

ITTY 100:           HTTP://INTERNET-TTY.NET:8010/ITTY100

AUTOSTART: HTTP://INTERNET-TTY.NET:8030/AUTOSTART
EUROPE:          HTTP://INTERNET-TTY.NET:8040/EUROPE

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From til128 at juno.com  Sat Jul 27 11:06:15 2024
From: til128 at juno.com (til128 at juno.com)
Date: Sat, 27 Jul 2024 15:06:15 GMT
Subject: [GreenKeys] ITTY at 100 words per minute
Message-ID: <20240727.110615.4780.0@webmail09.dca.untd.com>

Dear fellow GreenKeyers:

Due to the lack of interest in the past month or two, Paul is thinking of removing ITTY100.
To quote him:  "and it?s just using electricity and putting load on one of the ST-8000s for no good reason."
While we thank you all for your interest and support, and a special thank you to those who contribute to all the ITTYs,
I can see his point.
We would like to get your thoughts on this matter.
If there is enough interest in it, it will remain up, otherwise it will be removed.
I believe there is a third option where ITTY100 would be available on demand. 
Not sure how that would work.

Please reply to me off list.

We wish to thank you for your kind attention to this matter and wish you all well.

Tom WB2TTY Tillson



ITTY Listening:

ITTY:  HTTP://INTERNET-TTY.NET:8000/ITTY

AUTO:  HTTP://INTERNET-TTY.NET:8030/AUTOSTART

GREENWICH:   HTTP://INTERNET-TTY.NET:8040/EUROPE

ITTY 100:   HTTP://INTERNET-TTY.NET:8010/ITTY100


From abowman89 at yahoo.com  Sat Jul 27 12:16:33 2024
From: abowman89 at yahoo.com (abowman89)
Date: Sat, 27 Jul 2024 11:16:33 -0500
Subject: [GreenKeys] ITTY at 100 words per minute
Message-ID: <674467247.188800.1722097000241@yahoo.com>

Hi folks,? ? I am not set up 100 wpm, but I would like to thank the folks that keep the 60 wpm streams online.? ?Id have no idea where to start.? I mean the material alone on the 24hr stream to aquire, format and broadcast is huge.? ? ? ? Thanks? ? ? ? ? Bowman
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From harold at w6iwi.org  Sat Jul 27 12:33:31 2024
From: harold at w6iwi.org (Harold Hallikainen)
Date: Sat, 27 Jul 2024 09:33:31 -0700
Subject: [GreenKeys] ITTY at 100 words per minute
In-Reply-To: <674467247.188800.1722097000241@yahoo.com>
References: <674467247.188800.1722097000241@yahoo.com>
Message-ID: <383b9eeb718cba768a4d18f7974d87e2.squirrel@hallikainen.org>



On Sat, July 27, 2024 9:16 am, abowman89 via GreenKeys wrote:
> Hi folks,?? ?? I am not set up 100 wpm, but I would like to thank the
> folks that keep the 60 wpm streams online.?? ??Id have no idea where to
> start.?? I mean the material alone on the 24hr stream to aquire, format
> and broadcast is huge.?? ?? ?? ?? Thanks?? ?? ?? ?? ?? Bowman

I have also only used the 60 wpm stream, but might give the 100 wpm stream
a try on my DSP TU, which has a software UART that I can set to whatever
speed.  I've been messing around with ideas for generating text feeds. One
possibility is doing a full text feed from RSS from the New York Times or
other sources with RSS. So far, I have not gotten a good text feed. There
are also emailed newsletters from the NYT, but they are a short
introduction with a link to the full article which would then have to be
parsed. I'm interested in getting an 8 bit per sample, 8 ksps WAV stream
so I don't have to do MP3 decoding in the DSP TU.

Anyway, THANKS for ITTY!

Harold
https://w6iwi.org/rtty



-- 
Not sent from an iPhone.

From deramp5113 at yahoo.com  Sat Jul 27 13:41:46 2024
From: deramp5113 at yahoo.com (Mike Douglas)
Date: Sat, 27 Jul 2024 12:41:46 -0500
Subject: [GreenKeys] ITTY at 100 words per minute
In-Reply-To: <20240727.110615.4780.0@webmail09.dca.untd.com>
References: <20240727.110615.4780.0@webmail09.dca.untd.com>
Message-ID: <5F992CEF-027C-4B20-9E71-CDC65D10EBC6@yahoo.com>

ITTY100 is the primary input I use for running my 28 periodically to warm up and redistribute lube. I would miss it. Then again, you don?t owe me your efforts or electricity by any means :)

Mike D

> On Jul 27, 2024, at 10:15 AM, til128 at juno.com wrote:
> 
> ?Dear fellow GreenKeyers:
> 
> Due to the lack of interest in the past month or two, Paul is thinking of removing ITTY100.
> To quote him:  "and it?s just using electricity and putting load on one of the ST-8000s for no good reason."
> While we thank you all for your interest and support, and a special thank you to those who contribute to all the ITTYs,
> I can see his point.
> We would like to get your thoughts on this matter.
> If there is enough interest in it, it will remain up, otherwise it will be removed.
> I believe there is a third option where ITTY100 would be available on demand. 
> Not sure how that would work.
> 
> Please reply to me off list.
> 
> We wish to thank you for your kind attention to this matter and wish you all well.
> 
> Tom WB2TTY Tillson
> 
> 
> 
> ITTY Listening:
> 
> ITTY:  HTTP://INTERNET-TTY.NET:8000/ITTY
> 
> AUTO:  HTTP://INTERNET-TTY.NET:8030/AUTOSTART
> 
> GREENWICH:   HTTP://INTERNET-TTY.NET:8040/EUROPE
> 
> ITTY 100:   HTTP://INTERNET-TTY.NET:8010/ITTY100
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to deramp5113 at yahoo.com


From ve3gem at gmail.com  Sat Jul 27 14:09:40 2024
From: ve3gem at gmail.com (Keith Densmore)
Date: Sat, 27 Jul 2024 14:09:40 -0400
Subject: [GreenKeys] 100 WPM Baudot
Message-ID: <CAC1vJYCavnJ5KiLm=UbKLSsHbneeBmcyyKoZAgJESoi2iQpxsw@mail.gmail.com>

On an aside, I have never used 100 wpm 5 level for anything but I do use
110 and 300 baud ASCII from time to time. Made me think, is there any
stream on the 'net for these? Thanks, Keith
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From ad7i at ad7i.net  Sat Jul 27 14:19:17 2024
From: ad7i at ad7i.net (ad7i)
Date: Sat, 27 Jul 2024 14:19:17 -0400
Subject: [GreenKeys] ITTY at 100 words per minute
In-Reply-To: <5F992CEF-027C-4B20-9E71-CDC65D10EBC6@yahoo.com>
References: <20240727.110615.4780.0@webmail09.dca.untd.com>
	<5F992CEF-027C-4B20-9E71-CDC65D10EBC6@yahoo.com>
Message-ID: <CANpP5D54GVQHqR0SL9SOMK7LC+NxJRoUKUMLtqQOYQ=KsUvfEg@mail.gmail.com>

My 28RO is 100 WPM, but I usually run it from the 60 WPM ITTY stream and
use a microcontroller (AFSK input, AFSK output) to upshift the data rate
from 60 to 100 WPM for the 28RO.  Of course, in doing this, the characters
are printed at 60 WPM intervals, but it works for me.

If I need a 100 WPM stream (and I sometimes do), I can always use FLDIGI to
copy and save 15 to 30 min of data from the 60 WPM ITTY stream and then
play it back locally at 100 WPM for my 28RO.

Paul, ad7i




On Sat, Jul 27, 2024 at 1:42?PM Mike Douglas via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> ITTY100 is the primary input I use for running my 28 periodically to warm
> up and redistribute lube. I would miss it. Then again, you don?t owe me
> your efforts or electricity by any means :)
>
> Mike D
>
> > On Jul 27, 2024, at 10:15 AM, til128 at juno.com wrote:
> >
> > ?Dear fellow GreenKeyers:
> >
> > Due to the lack of interest in the past month or two, Paul is thinking
> of removing ITTY100.
> > To quote him:  "and it?s just using electricity and putting load on one
> of the ST-8000s for no good reason."
> > While we thank you all for your interest and support, and a special
> thank you to those who contribute to all the ITTYs,
> > I can see his point.
> > We would like to get your thoughts on this matter.
> > If there is enough interest in it, it will remain up, otherwise it will
> be removed.
> > I believe there is a third option where ITTY100 would be available on
> demand.
> > Not sure how that would work.
> >
> > Please reply to me off list.
> >
> > We wish to thank you for your kind attention to this matter and wish you
> all well.
> >
> > Tom WB2TTY Tillson
> >
> >
> >
> > ITTY Listening:
> >
> > ITTY:  HTTP://INTERNET-TTY.NET:8000/ITTY
> >
> > AUTO:  HTTP://INTERNET-TTY.NET:8030/AUTOSTART
> >
> > GREENWICH:   HTTP://INTERNET-TTY.NET:8040/EUROPE
> >
> > ITTY 100:   HTTP://INTERNET-TTY.NET:8010/ITTY100
> >
> > ______________________________________________________________
> > GreenKeys mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:GreenKeys at mailman.qth.net
> >
> >>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to deramp5113 at yahoo.com
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ad7i at ad7i.net
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From duncanancy at earthlink.net  Sat Jul 27 17:39:59 2024
From: duncanancy at earthlink.net (Duncan Brown)
Date: Sat, 27 Jul 2024 17:39:59 -0400
Subject: [GreenKeys] ITTY at 100 words per minute
In-Reply-To: <20240727.110615.4780.0@webmail09.dca.untd.com>
References: <20240727.110615.4780.0@webmail09.dca.untd.com>
Message-ID: <364b5388-4dc0-4367-b2b1-adf0b455f626@earthlink.net>

Tom,

I have only rarely used the 100WPM feed at the Museum, but it is nice to 
have it available.

On demand 100WPM would be OK, but has its own complexities.

Thanks,

Duncan
K2OEQ

On 7/27/2024 11:06 AM, til128 at juno.com wrote:
> Dear fellow GreenKeyers:
>
> Due to the lack of interest in the past month or two, Paul is thinking of removing ITTY100.
> To quote him:  "and it?s just using electricity and putting load on one of the ST-8000s for no good reason."
> While we thank you all for your interest and support, and a special thank you to those who contribute to all the ITTYs,
> I can see his point.
> We would like to get your thoughts on this matter.
> If there is enough interest in it, it will remain up, otherwise it will be removed.
> I believe there is a third option where ITTY100 would be available on demand.
> Not sure how that would work.
>
> Please reply to me off list.
>
> We wish to thank you for your kind attention to this matter and wish you all well.
>
> Tom WB2TTY Tillson
>
>
>
> ITTY Listening:
>
> ITTY:  HTTP://INTERNET-TTY.NET:8000/ITTY
>
> AUTO:  HTTP://INTERNET-TTY.NET:8030/AUTOSTART
>
> GREENWICH:   HTTP://INTERNET-TTY.NET:8040/EUROPE
>
> ITTY 100:   HTTP://INTERNET-TTY.NET:8010/ITTY100
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to duncanancy at earthlink.net


From hanyou at xsmail.com  Sat Jul 27 21:55:14 2024
From: hanyou at xsmail.com (E.)
Date: Sat, 27 Jul 2024 20:55:14 -0500
Subject: [GreenKeys] Wanted...
Message-ID: <31730C75-531F-48A6-B007-BBF56DAF761A@xsmail.com>


Hey all,

Looking for an Associated Press placard for a M15 or a M19? will pay.  Please contact me off-list.

From david.corbin at dynconcepts.com  Sun Jul 28 15:37:28 2024
From: david.corbin at dynconcepts.com (David V. Corbin)
Date: Sun, 28 Jul 2024 19:37:28 +0000
Subject: [GreenKeys] Nice looking Model 32
In-Reply-To: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
References: <750F84A5-0E2B-4413-A460-6AD00ED27C33@comcast.net>
Message-ID: <CO1P222MB0356A366B086A051B59E29439EB62@CO1P222MB0356.NAMP222.PROD.OUTLOOK.COM>

@Paul:

Do you have one in pristine condition for $225???

David.



From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Paul Heller via GreenKeys
Sent: Friday, July 26, 2024 2:13 PM
To: Greenkeys <greenkeys at mailman.qth.net>
Subject: [GreenKeys] Nice looking Model 32

The seller is smoking something.

[cid:image001.jpg at 01DAE104.0B9E8D70]
Telex Machine - Model 32 - PICK UP ONLY<https://www.ebay.com/itm/126534248064?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=GojeMjv7QNK&sssrc=4429486&ssuid=tBxVpSdyQp2&var=&widget_ver=artemis&media=COPY>
ebay.com<https://www.ebay.com/itm/126534248064?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=GojeMjv7QNK&sssrc=4429486&ssuid=tBxVpSdyQp2&var=&widget_ver=artemis&media=COPY>

I think the price needs to be divided by 10.

Paul
W2TTY

ITTY:                     HTTP://INTERNET-TTY.NET:8000/ITTY<HTTP://internet-tty.net:8000/ITTY>
ITTY 100:           HTTP://INTERNET-TTY.NET:8010/ITTY100
AUTOSTART: HTTP://INTERNET-TTY.NET:8030/AUTOSTART<HTTP://internet-tty.net:8030/AUTOSTART>
EUROPE:           HTTP://INTERNET-TTY.NET:8040/EUROPE<HTTP://internet-tty.net:8040/EUROPE>
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From paul0926 at comcast.net  Sun Jul 28 16:54:36 2024
From: paul0926 at comcast.net (Paul Heller)
Date: Sun, 28 Jul 2024 14:54:36 -0600
Subject: [GreenKeys] Nice looking Model 32
In-Reply-To: <CO1P222MB0356A366B086A051B59E29439EB62@CO1P222MB0356.NAMP222.PROD.OUTLOOK.COM>
References: <CO1P222MB0356A366B086A051B59E29439EB62@CO1P222MB0356.NAMP222.PROD.OUTLOOK.COM>
Message-ID: <95B8D1D9-7C30-4707-AC7A-70F195EE0F12@comcast.net>

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From w9ddd at tapr.org  Mon Jul 29 16:51:11 2024
From: w9ddd at tapr.org (John, W9DDD)
Date: Mon, 29 Jul 2024 15:51:11 -0500
Subject: [GreenKeys] AN/UGC-74B(V)3
Message-ID: <aadc9618-c47c-0356-e496-997961b8ebdf@tapr.org>

Regarding the UGC-74 in St Louis I posted a while back. Nameplate

I was sent a few other photos which I can send to others that were 
interested  rather than all of them to the list.



-- 
---
----
The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD

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