Dino Darling wrote:
>I believe I've read on here before where some owners have built MONO band amps
>but powered them all from a single power supply. So, one power supply deck
>and TWO RF decks. It has been suggested that I use vacuum relays to switch
>between the two RF decks. I was hoping to have them both run in standby at
>the same time. I obviously do not know enough and am therefore here seeking
>guidance. I will only operate one amp at a time.
>
>
Years -- no, that's not quite right -- decades ago, W1MX used just such
a system. We had a bunch of HF monoband push-pull 304TL amplifiers tied
to a single HV supply. We had a single Collins exciter. When we
changed bands we switched only two functions -- the RG-58 from the
exciter, and primary power to the 304TL filament transformer in the
selected amplifier.
So obviously I don't know enough, either, because I'm not understanding
what the suggested vacuum relays are for.
Bud, W2RU
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