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[Amps] Alpha 76 Plate Meter Calibration

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Subject: [Amps] Alpha 76 Plate Meter Calibration
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Date: Mon, 16 Jul 2007 12:23:28 -0400
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The Plate Meter on this restored two tube Alpha 76 needs recalibration. The
circuit uses the cathode voltage drop across a resistor measured by the
Plate Meter. The meter is converted to a volt meter by a series variable
resistor (pot.). it has a d'Arsonval 0-1ma basic movement If I knew the
resistance of the meter I could set it using Ohm's Law. Should be between 50
and 100 ohm's. I could do this hot but I shake real bad and I don't want to
get toasted. Any help out there?.

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