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In Reply to: RE: THD% estimate a bit too high ... posted by deathtube 667 on October 19, 2016 at 06:21:32:
The numbers I showed from the on line sim were just for comparison to each other, not for comparison to what others have done.
My numbers show that when the current is increased, increasing the plate dissipation, and the load impedance is increased from Dennis' operating point, the distortion goes down.
That flies in the face of Dennis' assertion of the idea of "thermaly stressed", what ever that means.
"...Rage had a similar SE 2A3 circuit using Magnequest OPT + JJ 2A3's (not sure of the plate load or biasing) that he reported getting 1.5% THD @ 1W."
I guess my assertion would be, if Rage was using Dennis' plate load and biasing and then increased the current and increased the load impedance his number would get even lower.
Tre'
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- RE: THD% estimate a bit too high ... - Tre' 07:34:28 10/19/16 (0)
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