Re: Homebrew SSB Transceiver
That's a good point. When I looked at mine under ~4A load on a scope there was 100mV p-p noise which was pretty bad. I couldn't tune it on my receiver however which was probably good. The final build has a Schaffner mains filter and then a fairly hefty pi filter on the output of the power supply. The pi filter is a bit of FR4 with a couple of low ESR electrolytic caps paralleled with 3 100nF ceramics and a hand wound FT82-43 with about 50 turns on it ~ 1mH. All glued down and then conformal coated. Can't see anything at 5mV/div on the scope
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