> > My ACOM 1000 manual certainly says no such thing ... nor does the amp
> > any noises at all.
Except perhaps on the air? Rated third-order IMD of the ACOM 1000 is
only -35 dB below rated output. I suspect real-world performance from this
tetrode-based amp without a tuned input may be worse than stated.
I owned the ACOM 2000A and it was a great amp until I began receiving
splattering reports. I confirmed the performance of the exciter(s), and it
was definitely the amp. Going back to my old triode-based amps fixed the