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RE: SE 6V6 triode : effect of plate to plate feedback ...

One problem is that the internal sine generator in ARTA is in 1dB steps.

I would need a way to fine tune the signal going into the amp so the output signal over the load resistor can be held with more precision.

Then I could get the same power output and compare THD% when in non-feedback vs. feedback modes.

Or I could use my external signal generator, but that tends to output more distortion than the soundcard.

Thanks for your comment.

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