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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RH84 test amp: driver stage wiring change = lower THD% posted by deathtube 667 on September 15, 2016 at 16:46:39:
The 12AT7 isn't as linear as many other 9-pin dual triodes. Distortion characteristics can change considerably with a relatively minor change in operating conditions. Not sure if that's what happened in this case, it's just one more possibility in addition to the things mentioned below. Didn't you say earlier that the distortion in this amp was over 1%?
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Follow Ups
- RE: RH84 test amp: driver stage wiring change = lower THD% - Triode_Kingdom 05:46:10 09/16/16 (3)
- RE: RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 09:45:43 09/16/16 (2)
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