--- In cbradio@yahoogroups.com, "Daniel R." <carddude99@...> wrote:
>
> I have had a GE superbase for 4 years. The only repair guy I knew past
> away last year. I live in the Seattle area. There are two quirks I
> have noticed with my radio in recent months. When I key up, the volume
> on the radio when I listen lowers big time until someone is talking.
> In other words, the static I hear all but disappears unless someone
> talks.
>
> Another quirk. My modulation even after I re-calibrate is garbled mush
> according to listeners for at least a half hour. Then it seems to work
> fine.
>
> Any ideas?
>
> Thanks
> Daniel
>

I'd start with the Squelch control...in fact all of the
"Potentiometers" could use a good cleaning with some Radio Shack,or
other "Potentiometer" cleaner.Turn unit off,disconnect all
connections,especially 120 volt A.C. , Then Spray the stuff in the
back of the pot,where the wires go into the control.Then work the
control back and forth several times.

Once that's done ,if you can borrow a microphone from someone with the
same wiring on the plug as you have...try that out.If it works
fine,then check the connections (and clean with rubbing alcohol & Q -
tip) on the mic plug,open up the mic and clean/inspect all the
connections there.

If the borrowed mic works fine,and your mic still garbles,get a cheap
mic...'cause you have a broken wire in yours.