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#31

12-29-2016, 06:50 PM

N2IXK

Technohippie

Join Date: Apr 2011

Location: Sittin' on the "Group W" bench...

Posts: 801

You may have difficulty directly measuring the 3A3 filament voltage, because it is a high frequency (15.7 kHz) and pulsed waveform.

Most AC voltmeters won't read correctly on non-sinusoidal signals. And of course, if the 3A3 plate cap is connected, the filament is floating at HV to ground.

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