Replacing Slide Potentiometer on radio

Look for a part number on the pots. If you're really lucky they are available and you can replace them.

That would be my third thing to do.

The first thing would be to run some basic tests to see if the pots are really busted.

The second thing would be to document where every wire connected to that board connects.

 

They sound like 20k stereo linear (maybe) pots.

They'll be easy to get, but you need to make sure that they're the right size and shape -- that may be harder.

Measure a working one from one end to the wiper with the wiper 0%, 25%, 50$, 75%, and 100% of its travel.

You should read 0k, 5k, 10k, 15k, and 20k if the pots are linear.

If they're log pots (unlikely) the readings will be bunched up.

 

Describe the size.

Saying you can't find any of that size won't help us help you unless we know exactly what you're trying to find.

The important dimensions are the length, width, and height of the body, the distance between the mounting screws (if they are used) and the distance the slider moves.

After that, it would be good if the connections were the same, but let's cross one hurdle at a time.

 

Yeah, I've had a brief look and stereo slider pots seem about as common as rocking horse manure.

Have you tried cleaning the pots?

 

It might be a sad story.

See what slide pots are available and see if you can jury rig something.

Alternatively, replace them with fixed resistors to simulate the pots being in the centre