[AMRadio] Re: 4-400

VJB wa3vjb at yahoo.com
Sat Mar 24 15:15:39 EST 2007

I would guess the tube was nearing market during the
Korean War. I know the early to mid-1950s is the time
frame for the T-368 transmitter, specified with a
4-400 in the final.  I have a 1957 Crosley T-368C that
came with an old red script Eimac 4-400, JAN-type. The
T-368 was the successor to the BC-610, so maybe some
military historians on here know the development
chronology. --Paul/VJB

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