[R-390] Plastic Potentiometers and Magic Dust

[Tisha Hayes]

Those cheap plastic volume controls and the magic dust that makes up the
variable resistance are indeed a big problem. The little wiper arm inside of
the pot eventually picks up a speck of dirt and begins to wear a track.

I have not had much luck in really restoring their operation. You can make
things better for a while but the only real solution is to replace the pot,
preferably with something that is not magic dust glued on a piece of
plastic.

The fader lube does work. I have a old clock-radio that has some personal
significance to me that I at least got back to the point where the audio
would not drop out completely when changing the volume.

-- 
Ms. Tisha Hayes/ AA4HA
-
Optimist: *The glass is half full.*
Pessimist: *The glass is half empty.*
Engineer: *The glass is not sized correctly AND we need a backup system.*