[GreenKeys] AN/UGC-143A teleprinter info/parts wanted - long shot

[Nick England]

That “180 lbs” may be an OCR mistake for “130 lbs”.

For the ASR version which I have, the control unit is 28 lbs, the printer
61, the keyboard 11, and the mag tape 32 - so I hauled it from the garage
downstairs to my workbench one piece at a time. I don't have the mag tape
unit, which might be fun, but you can also edit and store messages via a
paper tape I/O port. If I can't figure out the keyboard, I suppose it will
just be a printer. At the least it is yet another interesting project.


Nick England K4NYW
www.navy-radio.com


On Sun, Apr 20, 2025 at 10:43 AM Jeffrey Golas <jeffg at junknet.net> wrote:

> I have a bunch of UGC-74s and at 100lbs their definition of portable was
> pushing it already.
>
> Jeff
>
> On Apr 19, 2025, at 7:17 PM, Duncan Brown <duncanancy at earthlink.net>
> wrote:
>
>  At 180 pounds (!), it is what the Navy would consider "portable"
> ("anything that can be carried on a battleship").
>
> The UGC-143 looks similar to the Space Shuttle teleprinter Curious Mark
> did a series on a few months ago -
> https://www.youtube.com/watch?v=7HihKMIVnbs
> Initially, he refers  to it as a "Navy teletype", but later shows pictures
> of the AN/UGC-74 (which was more Army & Marine Corps)
>
> A block diagram of the UGC-74 & UGC-143 would probably be pretty similar,
> but was there any connection between the two?  Or just two different
> manufacturers trying to solve the same problem?
>
> Have fun,
>
> Duncan,
> K2OEQ
>
>
> On 4/19/2025 2:33 PM, Nick England wrote:
>
> This is a circa 1988 machine I am trying to revive with not enough
> technical info. To my surprise the control unit and the printer appear to
> work - but not the keyboard.
> A description and photos of the beast are at
> http://www.navy-radio.com/tty/ugc143a.htm
>
> It, of course, uses multiple microprocessors - It will pass BIT
> diagnostics except that evidently the printer Z80 isn't talking to the
> keyboard Z80 so it doesn't think that the keyboard is actually plugged in.
> I believe that the keyboard Z80 is alive because the one-line display on
> the keyboard says PLEASE WAIT.
> I have an operation and troubleshooting manual which covers the built-in
> test routines, but that stops at the "replace the keyboard assembly" stage.
>
> So does anyone have a spare keyboard or a tech manual with schematics that
> I could borrow?
> This is a very long shot, but you never know what someone has accumulated.
>
> Cheers,
> Nick England K4NYW
> www.navy-radio.com
>
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