[AMPS] 3-500Z filament voltage

[Peter Chadwick]

Monty says:

	>Measured with a Simpson True RMS meter, Amp NOT keyed, ZERO
	>plate current.  I played around with various resistors in series
with the
	>jacks to get rid of the RF when the amp is keyed, about 300 ma of
plate
	>current into a dummy load, properly tuned and loaded.  I cannot get
      >consistent voltage readings at all.  


My guess is that you've still got RF getting into the true RMS meter. Try
using an old fashioned moving coil VOM; you can check its calibration with
the RF off against the True RMS meter.

73

Peter G3RZP



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