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RE: Questions about 6BG6G amp build (schematic) Grommes 216BA

"It's a nested feedback loop. I would eliminate it and use one loop only. Including the power transformer in the loop does no harm."

Two things; one, Global loop NFB is the worst for creating stability issues, and IME it sounds the worst. This NFB is also balanced, and reduces the output impedance directly which helps with bandwidth in and of itself. It also linearizes/reduces distortion faster than SE on a per dB application.

Second, why would you put the power trans in the loop? I suspect you meant OPT...LOL
cheers,
Douglas

Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.


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