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In Reply to: I've read many times that 6SN7's are "big tone" tubes, but........ posted by Rick W on October 29, 2014 at 10:03:56:
The 12ax7 has a lot more gain than the 6sn7.
The 12au7 is similar to the 6sn7 but the 6sn7 is way more linear (produces less harmonic distortion).
The 6sl7 has only a little less gain than the 12ax7.
As a preamp tube the 12au7 might be OK because a preamp will not ask the tube to swing much plate voltage (harmonic distortion produced by a tube goes up as the plate voltage swing goes up).
As a driver tube (to drive the output tube(s)) the 6sn7 is much better than a 12au7 because at higher plate voltage swings that will be required of a driver stage tube.
Tre'
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- RE: I've read many times that 6SN7's are "big tone" tubes, but........ - Tre' 12:39:45 10/29/14 (0)
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