[AMPS] Re:HV on tube w/o filament voltage

[Peter Chadwick]

The problem I could see is when switching off: if the bias goes down while
the cathode ( rather than filament) is hot, it could lead to problems  with
stripping. It might not do a thoriated filamenmt much good, because you
start running out of emission, but generally, their thermal time constants
are much less than cathodes.

73

Peter G3RZP



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