[CQ-Contest] amps in series
Tom Osborne
w7why at harborside.com
Sun Oct 28 07:51:07 EST 2001
Dale L Martin wrote:
> I always thought Bill Orr, W6SAI, had the right idea in his >60's/70's issue(s) of Radio Handbook. I think he used rack >containing a separate, rack-mounted amp (813's?) for each band >all fed from one power supply. I don't recall how the switching >was accomplished.
I built one of those using 3 amps. The B+ was hooked up to all
the amps all the time. You turned the amp on by turning the
filaments on. Each amp was hooked to a separate antenna and you
just switched the exciter to the one you wanted to use. Looked
impressive :-) 73
Tom W7WHY
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