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In Reply to: Ping Allen Wright - PP-1C harmonic distortions graph posted by Ray Moth on February 17, 2007 at 17:49:03:
...it was pure blind luck!The even order harmonics should cancel out in such a quasi differential design, but the amp as measured obviously had not well matched anode R's in the first stage.
If the whole thing is very well balanced up all the even order H's fall out leaving just the odd's as shown
Regards, Allen
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Follow Ups
- Good question - and if you promise not to tell... - Allen Wright 04:44:53 02/22/07 (1)
- Re: Good question - and if you promise not to tell... - Ray Moth 23:08:08 02/22/07 (0)
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