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Old March 28th 06, 12:31 AM posted to rec.radio.cb
Gumpit
 
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Default Cobra 148 gtl Philippines squeals on AM only

Yes a dummy load was used.....O.k. I switched the mic board with one
from a 2000gtl..Now the squeal is gone but it throws a carrier that
sounds real hashy on sideband with little or no audio...Do you think it
is the audio chip or a capacitor that may be bad? And which one? Randy
Slow Code wrote:
"Gumpit" wrote in
ups.com:

Any ideas. Thanks


Yes, I've heard of this happening before. Your radio is dry and needs to
be lubricated to get the squeal out.

Get some WD-40 (Comes in a spray can) Take the covers off the CB so you
can see the componant side of the PC board. Now completely spray down
everything until the the can is almost empty and then use the last little
bit and spray inside the microphone. Let it soak about five minutes.
Next it's time to remove the excess lubricant. Take the radio out to the
middle of your concrete driveway, and throw a lit match in it. This will
burn away the excess lub. To clean the smoke smell inside, put the CB in
your dishwasher and run on Pots & Pans Cycle.

HTH, 73

SC