[GreenKeys] M28 training docs

[Nick England]

FWIW, I just scanned a couple of short docs evidently used in some
training classes - might come in handy some day

28 ASR K-KT-T switching guide - 7 pages - charts and illustrations to
show what all the various pieces and parts do
http://www.navy-radio.com/manuals/tty/28asr-kt-switching.pdf

28 LPR printwheel positioning chart - 1 page
http://www.navy-radio.com/manuals/tty/LPR-positioning-chart.pdf

cheers,
Nick K4NYW
www.navy-radio.com