5VAC filament supply for 300B - hum pot or no hum pot?
Any opinions please on whether the suggested 100R hum pot is needed if I use a 5VAC power supply to the filament of the 300B? If I do away with the hum pot, I guess two 50R resistors are still needed to create the "centre" for the cathode bias resistor / capacitor?
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You will need one even more so!