In Reply to: RE: RH84 test amp: multiple problems found ... posted by Tre' on September 24, 2016 at 11:50:44:
What you are seeing is 2nd order. The 12at7 family does have different gain at different grid voltages. In a push pull amp this can actually be used to give a reduction in higher order distortion. You will end up will a little higher overall THD but a better sounding amp.
The 7026 is kinda in the 12at7 family.
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Follow Ups
- Actually - Russ57 17:17:11 09/26/16 (3)
- circuit in question - Tre' 18:03:18 09/26/16 (2)
- RE: driver stage distortion... - deathtube 667 19:19:44 09/26/16 (1)
- RE: driver stage distortion... - Tre' 19:45:51 09/26/16 (0)