I have scanned the July 1991 edition of the UGC-136BX manual.

To make things easier to print, I have also broken out separate files of the fold-out pages (some are 11x48) and the letter-sized pages (8.5x11).

The complete thing is about 300MB. Links are at

https://www.navy-radio.com/tty/ugc136.htm

Please let me know if I need to re-scan anything.

Have Fun!

Nick England K4NYW
www.navy-radio.com