Well, I'm using a Heathkit IM-4100 counter which agrees with a good RF generator. I have a vague understanding of what you're saying. I suppose I could use an aligned radio to see if I'm actually getting 455KC for the IF--or just compare it with the good generator at any frequency.
That is the original pot/switch. It took a lot of oil and some muscle, but it seems to work OK.
Thanks.
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