bobc
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So I wired in a switch to swap between the resistor and the UL tap for my 8K Edcors. The 40% tap is louder, which would follow I think tube is operating in pentode. Maybe something happening with phase too ? Kind of like throwing the bias switch one more time.... I think the amp is likely putting out as little more power. I really dont know it is better at this point, that said, if the OT has an UL tap its another way to add another voice to the amp. If you have one, and are building, may be an interesting option.
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