• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Analog panel meter on filament of ac 45?

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C

coils

Member
Joined 2004
#1
Can I install an analog panel volt meter directly across the filament of an ac heated 45 ? I ask because the meter spec states an impedance of 33 ohms @ 60hz, and I paused, thinking maybe the filament voltage would be affected with low frequency audio signal.

Thanks
 
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