[Amps] parasitic excuses

[Peter Chadwick]

There's no doubt you can get parasitics. In my experience, they don't just 'appear' in an equipment that's operating satisfactorily, unless the resistors burn up - and if the parasitic is suppressed, then the only thing to heats the resistors is the signal current. Of course, the harmonic currents will provide heating, too - don't forget that in  Class B stage, the second harmonic plate current is only 6dB down on the fundamental.
But a lot of the suggestions we've seen here over the years strike me as being similar to the beliefs held in Salem some 300 years ago! I go along with Tom and John in this.
73
Peter G3RZP