[GreenKeys] FS Model 28

[John, W9DDD]

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
>     >
>     >
>     >
>     >
>     > ______________________________________________________________
>     > 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
>     <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 <mailto: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
>     <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 m38inmaine at gmail.com
>     <mailto:m38inmaine at gmail.com>
>

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

John, W9DDD