Specifically, is it necessary to limit inrush current at turn-on in a 8877
tube?
If some filaments do not require current limiting, what is the characteristic
of a filament which requires limiting the current (I understand that a cold
filament has less resistance than a hot one) ?
I have not seen a definitive answer although I have not been subscribed here
for all that long.
Thank you to those who contribute here to make information available.
Dave, WT8R
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