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>
>
> ______________________________________________________________