• 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.

Vintage power transformers

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#41
It seems varying the shunt resistor is not a good idea. I tried varying the series resistor instead. It seems that changing the series resistor from a 1000 ohm to an 820 sounds about right. I think this results in a little less voltage than the original design but seems to sound good so I'll listen to it for a while.
 
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