[Amps] stability of amps

[Peter Chadwick]

My comments on the big amplifier and harmonics stem from the fact that you can calculate how far down harmonics are likely to be, and a straight pi network and class AB1 or AB2 are most unlikely to meet the requirements, both of the FCC and Radio Regulations. If it would, why do all the amplifier manufacturers use pi-L networks?
One alternative can be a pi network and switched half wave filters, of course. Fine for a retrofit, but not if you're building from new.
73
Peter G3RZP