From: HAROLD B MANDEL <ka1xo@juno.com>
> 1. Will this ammeter be able to handle 2545 volts?
You shouldn't be connecting it in the plate lead. Measure the cathode current,
which is at low voltage.
> 2. Does this ammeter need another external shunt?
What's the resistance measured across the terminals? If it's a 2-A meter it
should be pretty low, a fraction of an ohm. You could test with a variable dc
supply, a series resistance bank, and a separate meter with known calibration,
like a DVM. You don't have to go all the way to 2 amps. If both meters read,
say, 100 mA, at the same time, you know the scale calibration is correct.
73,
Jim, KR1S
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