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In Reply to: RE: No, Not Really !! posted by drlowmu on October 08, 2009 at 14:27:57
Jeff:
The question of 2 or 3 stages is dependent upon if there is an active preamp upstream or not. In my experience, you need 3 gain stages, be they all in the amplifier or 1 in the preamp and 2 in the power amp.
No doubt, the choice of output tube is significant. So is topology: cap or transformer or direct coupling between stages.
As for output transformer quality/construction, I can assure you: You will heard a marked difference between a standard copper wound, M6 EI core and a silver wound, nickel double C cored transformer. :) I would not put it at the bottom of the list. To me it is equally important.
Donald North
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