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Single Ended Triodes (SETs), the ultimate tube lovers dream.

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RE: TAL - Jeff Korneff 45 Clone Mono Amplifers Review .......

Posted by shane. on August 5, 2021 at 15:24:36:
I realise the amplifier is similar to the stereo version but what struck me 'different' about it was the way the L/R channels share a common cathode resistor. Surely this changes the sound, for better or worse, but it wouldnt carry across to the dual mono build.

Similarly, with the two 6SN7 triodes within the common envelope - to a lesser degree, but still with some crosstalk between channels (in the stereo build) and out of phase with the output stage. Again, its going to sound different with the dual mono build.

With regard to 'what to do with the other half of the 6SN7' in the dual mono, well considering its fundamentally a different amplifier from the original stereo amplifier, I'd use both halves and set it up as a differential amplifier, this would remove the need for the Ck, and then I'd try taking the output from both in the and out of phase outputs and see what difference that made.