My best guess is that the "rheostat" is actually a potentiometer, and you
removed a ground from one end of the pot so that it cannot swing from +V to
ground.


"TNap" wrote in message
...

Transistors should not fail
the way these symptoms appear so I assume they are ok.

REally? What makes you assume this?



My suspicion is that the rheostat may be failing.

My suspicion is a loose nut at the end of the screwdriver that installed the
new radios.


Jim