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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: RE: NFB with PT-31's ... posted by grindstone on January 15, 2022 at 09:43:29:
"Thanks. And thanks for orig data. So what'd you do?"
Triode-connected the SE 6AQ5 finals and removed loop feedback.
There is a lot of THD vs. output power, but the harmonic distortion is mostly 2nd order harmonic.
The current circuit schematics, more graphs & photos are posted on the webpages.
DT667
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