[Amps] Cathode (filament potential to ground)

["HENRY PFIZENMAYER" <pfizenmayer@worldnet.att.net>]

OK Gurus -- What is the DC voltage from a good 3-500z  filament to ground
with its grid grounded for DC and 3000 volts on the plate ? I remember the
cathode voltage on cathode keyed tube stages approached the plate voltage
key up , but never keyed a grounded grid stage in the cathode.

Hank K7HP



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