[GreenKeys] AN/UGC-77 - reverse engineered wiring diagrams

[Nick England]

FWIW, Here are my diagrams for the TEMPEST AN/UGC-77 KSR unit and the Low
Level Keyer that coverts the photocell signal to +/-6v polar signaling.
http://www.navy-radio.com/manuals/tty/wd/ugc77-wd-v01.pdf

As noted, I'm not sure about the switch/fuse AC line wiring, but that's the
way the one sample I have so far is wired. Seems odd that the lamps would
be powered on all the time.

One thing that is unique about this model is that the low voltage
transformer that runs the lamps is located on the typing unit rather than
on the cover like normal 28 Compacts. The optical distributor mechanism
doesn't leave enough room to mount it as usual.

Comments, corrections, etc. are appreciated.

Go Cubs!
Nick England K4NYW
www.navy-radio.com
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