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RE: PP Class A OPT Loading

I guess by negative current you mean that a tube can only sink, not source current. True, but sometimes OPT leakage inductance can fool feedback circuits into behaving as if the cutting-off tube is supplying current during the crossover.

In a push pull amp, the plate voltage of the tube cutting off goes to nearly 2X B+ while the conducting tube goes toward Vp=0.

Edits: 03/21/12

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  • RE: PP Class A OPT Loading - Michael Koster 07:52:21 03/21/12 (0)


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