Modified Futterman OTL amplifier (UPDATE)

OTL Asylum

OTL, Output Transformerless Amplifier User Group.

For DIY interested people this is my recommended modification for automatic compensation of SEPP gain imbalance (that is, for improvement of even order harmonic distortion).

With respect to the previously published schematic (with fixed imbalance compensation, see my previous posts on the subject) one more 6SN7 tube and one less 12AT7 tubes (per channel) are required.

Thanks to tubetvr for his kind suggestions.

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Topic - Modified Futterman OTL amplifier (UPDATE) - cellai@space.it 00:59:08 07/14/08 (0)

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