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RE: Filament voltage question.....

Vinnie,

Generally most DHT tube amps or preamps use separate filament trannies. Then you can use a hum balance pot to null out any hum(to a certain amount). But because you are going to use both windings of the tranny with a common center tap(0) the balance pot is out and then you will have to incorporate an RC(resistor/capacitor) filter.

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