Quote:
Originally Posted by David G4EBT
At some point it would be useful to measure the HT current being drawn by the set. You can conveniently do this by putting your multi-meter on say the 200V DV range, applying the test prods to each end of R18 - the 10K Ohm HT load resistor - and reading off the voltage dropped across R18. Then applying Ohms law, divide that Voltage by 10,000 (Ohms) and it will give you the current in Amps (or a fraction of an Amp in this instance).
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Firstly, for resistance R18 is measuring 9.91kΩ so well within tolerance.
Secondly, for the HT current R18 is measuring 135.5 with the multimeter on the 200V DC range - using Ohms law = 0.01367 Amps I think?