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In Reply to: RE: Phase inverter tube choice question posted by airtime on May 14, 2020 at 08:39:49:
The problem is the non-linearity of the 12au7. Previously I changed out 12au7's with Tungsram E80CC. It wasn't until recently I found more improvement with 6SN7's.
Maybe it is something with your application? You could look at where you are on the curves. Does it just operate in the linear region?
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Follow Ups
- RE: Phase inverter tube choice question - fredtr 09:11:56 05/14/20 (6)
- RE: Phase inverter tube choice question - airtime 07:15:00 05/15/20 (5)
- RE: Phase inverter tube choice question - fredtr 11:20:33 05/15/20 (4)
- RE: Phase inverter tube choice question - airtime 13:35:05 05/15/20 (3)
- RE: Phase inverter tube choice question - fredtr 07:35:01 05/16/20 (2)
- RE: Phase inverter tube choice question - airtime 17:54:00 05/16/20 (1)
- RE: Phase inverter tube choice question - mhardyman 15:40:01 06/06/20 (0)