a shocking revelation

[Holden]

Hi gang,
I wonder how many of us Heathies have had similar experiences to Mike? My first
transmitter, too was an AT-1, and would like to have a dollar for every time I
got stung on that key. I cursed that AT-1 many times, but boy would I like to
have it now!

Cathode keying was common on many MOPA (master oscillator-power amp type
transmitters of the fifties and earlier. I had a Knight T-50 which had it also.
Took me a long time to learn to make sure the center contact on the 1/4 inch key
plug went to the key hot contacts. Also wonder why key manufacturers didn't
provide some cover for the hot contact binding post.

And, yes Mike, you probably DID actually key the AT-1 when you got nailed...I
know, I build old (really old) replica transmitters circa 1920s-30s, most of
which use cathode keying, and heard the signal when I got nailed once. Neither
the signal nor my vocal response would be legal by todays standards...

Howie WB2AWQ

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