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Would a modest amount of NFB benefit the standard triode strapped Clementine 6L6 build? If so what value should be used for R27 and R28? A switch could be added to turn feedback on/off. There's an older post from EWBrown about this, though I'm not sure about the build.

vvelt wrote:Would a modest amount of NFB benefit the standard triode strapped Clementine 6L6 build? If so what value should be used for R27 and R28? A switch could be added to turn feedback on/off. There's an older post from EWBrown about this, though I'm not sure about the build.

Sure! Just use the ULtra feedback values (back of the manual) and leave the triode strap resistors in place.

Shannon