[GreenKeys] GNT Model 2206 Baudot to Morse Converter

[Jeffrey D Angus]

This has been a fascinating diversion from the usual Teletype stuff.
What I wanted to understand was how the tape is punched on the Morse
code side.
This is explained quite well in the Boehme keying head manual.
<http://www.navy-radio.com/manuals/boehme-man-tm11-377.pdf>
My next question was how do they do the 3:1 dash/dot spacing.
It's actually 2:1.
Dot + one dot-blank (spacer) = 2 baud.
Dot + dot + dot + one dot-blank (spacer) = 4 baud.
Reading the "how does this work" for the Hallicrafters HA-5 keyer
makes this a bit more intuitive.
Hallicrafters you say? Yes, I bought four of them over the past year.
I've always wanted one, then I ended up with three more. Of course
neither the 1st and 2nd ones worked. So I had to learn the what, how
and why in the process of repairing them.

And interesting as it is to see how it's done with a pair of multi-
vibrators, it's even more interesting to see how it's done mechanically.

A special thank you to Richard Dillman for posting this originally.

-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com


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