[GreenKeys] (no subject)

[steve bennett]

 Tom,
  I got your message to Mathew just fine.
-Steve
    On Friday, March 18, 2022, 06:22:10 PM EDT, Tom Hunter <tomhenryhunter at gmail.com> wrote:  
 
 Mathew Wagner,
Terminal Units turn up on eBay now and then for reasonable prices.
There is an MFJ-1224 auction ending Sunday.
https://www.ebay.com/itm/115293450914?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
Download the book at the link he provides and save it to  your hard drive.Look at the book if and see if you might like the TU. 

I have a 1224.It has one unusual feature, The loop connects to an RCA jack. 
I put a red label by my loop jack and colored the RCA plug with red magic 
marker. That's called idiot-proofing.Otherwise I might forget and plug the loop into the wrong jack with disastrous results.

It will stand alone (Does not actually need a computer connected to it.) 
Feed ITTY tones or my tones (http://n3crk.ddns.net:8000/tty) into it. 
connect a loop supply and Teletype to it and you will be printing.
I would not use a loop supply greater than 120VDC. I built one with 
a 57 volt transformer that gives me 80VDC at 60 mils so I don't 
over-stress the keying transistor. 

His shipping is less than ten dollars. I would snipe it at maybe $70 and 
hope to get it for less.

Or, every couple days do an eBay search for "rtty".  Then put it in 
order of lowest price+shipping. That will turn up most terminal units. 
That is what I do. 

 Not all TU's have a loop output. That is the first thing I look for.


TOM   N3CRK
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