[GreenKeys] FS Model 28

[R Russell Miller]

Hi John,

I believe that the green  "ON" key on a Model 28 keyboard was used to
disable the motor stop relay.(triggered by an upper-case  blank H)

73

Russ WA3FRP

On Thu, Sep 3, 2026 at 11:13 AM John, W9DDD via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> Yes it does say ON, but there would normally be a power switch to the
> right and just below the keyboard.  I'm totally unaware of any
> modification that would add that key to the keyboard.  So I'm trolling
> to see if anyone is aware of it among the other 10,000 exceptions to
> standard Teletype standard practices.  It would appear that Teletype
> would come up with a modification kit for just about anything for a
> customer requested feature.
>
> Normally keys in that top row are red, so that's another clue that this
> is something unusual.
>
> My theory is that there is some function installed that would normally
> have a red key,  but one was unavailable.  As an example there is a
> modification kit to ad the answer back function.  But, the Here Is red
> key is a separate (optional) modification kit.
>
> On 9/2/2026 3:54 PM, MilComm Guy wrote:
> > It says "ON"
> >
> > Mark
> >
> > On Wed, Sep 2, 2026 at 3:51 PM John, W9DDD via GreenKeys
> > <greenkeys at mailman.qth.net <mailto:greenkeys at mailman.qth.net>> wrote:
> >
> >     Interesting green key in the middle of the top row.  Normally that
> >     position is used for a red Here-Is key.  As near as I can tell it
> >     looks
> >     like it says ON.
> >
> >     Anyone know what it's function is?
> >
> >
> >     On 9/1/2026 7:02 PM, MilComm Guy via GreenKeys wrote:
> >     > I am no tty expert but it works and is in clean condition,
> >     delivery to
> >     > Gilbert PA show or Nearfest in NH.  Asking $350 obo.
> >     >
> >     > Thanks
> >     > Mark
> >     > K1HF
> >     >
> >     >
> >     >
> >     >
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> >     --
> >     ---
> >     ----
> >     The above comments or recommendations are SWAG. Use at your own risk.
> >
> >     John, W9DDD
> >
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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
> >
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> >
>
> --
> ---
> ----
> The above comments or recommendations are SWAG. Use at your own risk.
>
> John, W9DDD
>
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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
> Please help support this email list: http://www.qsl.net/donate.html
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