Equalizer slider cleaner

E

Engineer

Guest
By an oversight and a serious lack of attention (happens to
us all!), I acquired a used stereo equalizer some time ago.
Predictably, darn it, the slider pots are either dirty or
shot - the measured gain at the various centre frequencies
jumps as various sliders are moved, and an ohmmeter also
jumps on passive measurements.

Slider replacement is out (parts too expensive.) So it's
try to clean or throw out (perhaps cannibalize.) Does
anyone have a recommendation for a potentiometer cleaner
that won't actually dissolve whatever carbon is left on the
tracks? I've tried "Power up" switch cleaner to little
effect.

Cheers,

Roger

--
Roger Jones, P.Eng.
Thornhill, Ontario,
Canada.

"Friends don't let friends vote Liberal"
 
Roger: Some pots have grease in them that dries. GC electronics make a
cleaner called JifAction. It is cheap so you can flood the pots and not run
up too big of a cleaner bill. Spray them. Let them sit a while and clean
them again. Keep flooding them out. Might want to soak the mess up with
rags while the unit is standing on its' side.

If that doesn't work, as a last resort, use Brake rotor Cleaner from an auto
parts store. This stuff eats plastic so be frugal. Blow the pots out with
compressed air to dry the rotor cleaner out. I don't know if it eats the
carbon or not. I have used it many times, it is very powerful. Vent the
room good. It is degreaser for brake rotors.

Afterward clean and lube with conventional control cleaner for electronics.
JifAction works very well. Good Luck MH (top post)
"Engineer" <LandRJones@sprint.ca> wrote in message
news:3F2B4147.BD78711B@sprint.ca...
By an oversight and a serious lack of attention (happens to
us all!), I acquired a used stereo equalizer some time ago.
Predictably, darn it, the slider pots are either dirty or
shot - the measured gain at the various centre frequencies
jumps as various sliders are moved, and an ohmmeter also
jumps on passive measurements.

Slider replacement is out (parts too expensive.) So it's
try to clean or throw out (perhaps cannibalize.) Does
anyone have a recommendation for a potentiometer cleaner
that won't actually dissolve whatever carbon is left on the
tracks? I've tried "Power up" switch cleaner to little
effect.

Cheers,

Roger

--
Roger Jones, P.Eng.
Thornhill, Ontario,
Canada.

"Friends don't let friends vote Liberal"
Click to expand...
 
Engineer wrote:

By an oversight and a serious lack of attention (happens to
us all!), I acquired a used stereo equalizer some time ago.
Predictably, darn it, the slider pots are either dirty or
shot - the measured gain at the various centre frequencies
jumps as various sliders are moved, and an ohmmeter also
jumps on passive measurements.

Slider replacement is out (parts too expensive.) So it's
try to clean or throw out (perhaps cannibalize.) Does
anyone have a recommendation for a potentiometer cleaner
that won't actually dissolve whatever carbon is left on the
tracks? I've tried "Power up" switch cleaner to little
effect.

Cheers,

Roger

--
Roger Jones, P.Eng.
Thornhill, Ontario,
Canada.

"Friends don't let friends vote Liberal"
Click to expand...
Only one choice: caig labs. D5 or Pro gold.
Not cheap, but worth every penny,

BOB



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