[GreenKeys] 1948 TTY repairman training materials for 14, 15, 19, 26

[Nick England]

Scanned some old docs today - Seem like good overviews - See the first 8
docs at
http://www.navy-radio.com/manuals-ttycorp.htm#bsp

The 1938 Lecture #1 on telegraph transmission is at
http://www.navy-radio.com/manuals/tty/ab95.101.pdf

>From the "you learn something new every day" dept. - "40% of page
teletypewriters delivered for private line service in 1936 were equipped
with sprocket feed for the use of forms."

Cheers,
Nick England K4NYW
www.navy-radio.com
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