In Reply to: I'll have to dig it up. I've read several articles on this topic posted by Ralph on September 17, 2021 at 11:22:38:
I'd like pointers to the articles.
It is interesting that Nelson wrote the linked info back in 2013 and since then I hear he has been playing with the phase of the harmonics in successive stages so any 2nd generated remained in phase rather than nulled. Take a simple driver and output with a typical H2 dominant distortion spectra and the nature of the phase inversion puts the even order harmonics from each stage out of phase from the other creating a new overall spectra where the evens partially null leaving the odds to possibly dominate. The story goes Nelson would inset a 1:1 inverting transformer between the stages to keep the evens summing in phase so 2nd dominates and each following order declines.
The above is a rough paraphrase from my fuzzy memory... if anyone knows nelson's current thoughts please chime in.
dave
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Follow Ups
- RE: I'll have to dig it up. I've read several articles on this topic - dave slagle 14:58:54 09/17/21 (7)
- RE: harmonics added - Ralph 12:42:43 09/20/21 (6)
- RE: harmonics added - dave slagle 15:45:40 09/20/21 (5)
- I think I found one of those articles - Ralph 12:15:38 09/24/21 (3)
- RE: I think I found one of those articles - dave slagle 14:52:26 09/24/21 (2)
- RE: I think I found one of those articles - morricab 07:50:53 10/12/21 (0)
- I'll keep looking. I know I read about the 3rd quite recently nt - Ralph 15:11:32 09/24/21 (0)
- RE: harmonics added - Ralph 12:37:49 09/22/21 (0)