>The more drive I give it, the higher the filament voltage
rises. Used to always drop under load.<
Presumably measured in the same way with the same meter - and not a DVM
affected by RF?
How does the input SWR of the amp change while this is going on?
Which bands does it happen on - all of them?
>What ALL the meters do, including grid current and exciter
SWR, will tell you a great deal. Without knowing what the
meters do all people can do is guess, and that isn't very
productive.
<
Agreed
73
Peter G3RZP
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