On Apr 20, 2025, at 11:45 AM, Nick England <[email protected]> wrote:
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.On Sun, Apr 20, 2025 at 10:43 AM Jeffrey Golas <[email protected]> wrote:I have a bunch of UGC-74s and at 100lbs their definition of portable was pushing it already.JeffOn Apr 19, 2025, at 7:17 PM, Duncan Brown <[email protected]> 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
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,
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