[Amps] IM distortion and such

[Peter Chadwick]

W4EF said:
>presenter showed several IMD curves for class B amplifiers that
had high level "sweet spots" where the positive slope of IMD level
as a function of input power actually reversed and formed a local
minimum at a fairly high input power level.<
Yes, Mike, it's a well documented phenomena, and has been known for many years - at least amongst the professional engineering community, as well as a few hams.
73
Peter G3RZP