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1. [Amps] Alpha 76 Plate Meter Calibration (score: 1): Author: <w5pvr@triton.net>; Date: Mon, 16 Jul 2007 12:23:28 -0400; 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; /archives//html/Amps/2007-07/msg00267.html (7,217 bytes)
2. Re: [Amps] Alpha 76 Plate Meter Calibration (score: 1): Author: STEVEN & NANCY FRAASCH <sjfraasch@embarqmail.com>; Date: Mon, 16 Jul 2007 12:51:29 -0400 (EDT); Bob: Yeah, leave the line cord unlugged. Measure the cathode resistor cold. It should be a few ohms. Plate current times that resistance is a voltage drop. Assuming it is 3 ohms, 500 ma of plate curr; /archives//html/Amps/2007-07/msg00269.html (7,763 bytes)

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