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No matter how you cut it, phase split happens

How a differential amplifier works is one tube section is forced to do the opposite of the other due to the cathodes being coupled together.

As 'phase splitters' go its a pretty elegant approach and does not have the sonic signature associated with most other phase splitter circuits. If you were to drive each half of the differential amplifier with your transformer the result will be lower distortion than if you drove the 6SN7 sections each single-ended.


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