In ,
Arny Krueger typed:

I keep hearing about this, but have never seen the problem up front
and personal. I have had RF problems but they were in the front end,
not the back end.

A while back I had an amp
that would pick up VHF taxi and police transmissions
quite clearly.

Brand - model?


Texan, circa mid-1970s

It even picked up Radio Moscow on
occasions when global MF radio propagation conditions
were favourable. Home made longitudinal chokes on the
speaker leads fixed most of this problem.

Most power amps already have chokes in series with their output
terminals.
As they should. The Texan didn't.

Jo