[GreenKeys] They're Back - UGC-136 surplus batch

John Spigel w1an.dxusa at gmail.com
Thu Jul 10 13:26:44 EDT 2025


I was researching where some of these machines were installed. They were 
in many cases replacing most the 28s that were considered 
"unsupportable" back in the late 1980s. For subs they were installed on 
the Seawolf, Los Angeles and Trident Class. Tridents had most of the AX 
versions.

 From Nov 1988 "Maritime Reporter" it appears the manufacturer was 
issued a contract to make additional AX units:

"E-Systems Received $2.3-Million Contract
E-Systems, Dallas, Texas, recently received a $2.3-million contract 
option exercised by the U.S. Navy for continued production of AN/ 
UGC-136 (AX) military teleprinters for use in the submarine fleet. The 
contract was awarded by the Space and Naval Warfare Systems Command for 
110 teleprinters and ancillary services to be delivered in 1989. Work 
will be performed by the ECI Division, St. Petersburg, Fla. The initial 
contract was awarded to ECI in 1987."

Six years later in 1995 they were already starting to phase them out as 
part of a modernization to use PCs, laser printers, etc.

73, John W1AN

On 10-Jul-25 12:21, Nick England wrote:
> This is the UGC-136AX I restored several years ago
> https://www.navy-radio.com/tty/ugc136.htm <https://www.navy-radio.com/ 
> tty/ugc136.htm>
> 
> receiving 60wpm (converted to 75 baud)
> https://youtu.be/sSX5_5JRKiA <https://youtu.be/sSX5_5JRKiA>
> 
> receiving 100wpm (75 baud)
> https://youtu.be/hgFB3qeKQ5M <https://youtu.be/hgFB3qeKQ5M>
> 
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.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 w1an.dxusa at gmail.com



More information about the GreenKeys mailing list