I have a question about when you can apply plate voltage. Being that they are
almost instant on - would it be better for longer life to use a relay for the
HV a few seconds for the filaments to start glowing?? Iv been having a problem
with one of my tubes arc'en over when first turned on and i was wondering if
putting a delay in for the HV with a Vacuum relay and some kind of delay
circuit for it.
Mike
KC7NOA
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