OT: cleaning pots on my vintage audio amp

From: Chad Fernandez <fernande_at_internet1.net>
Date: Wed Feb 20 23:06:22 2002

Tony Duell wrote:
>
> >
> > I'll have to look again. I probably won't do anything until this
> > weekend. It didn't jump out at me, last time I had the cover off. If I
>
> I guess I can conclude you don't have a service manual with exploded
> diagrams, then :-)

If I explode the diagrams won't they be in tiny pieces, making them much
harder to use?? :-) No, I don't have any diagrams :-(
 
>
> Incidentally, once you're inside, look to see if the schematic is tucked
> in there. It's not that uncommon to find a schematic in an envelope stuck
> to the cover of 1970's stereo equipment.

I've had the cover off before. I don't recall seeing a schematic.

>
> > I don't have anything with multiple concentric spindles, on this amp,
> > fortunately. Looking at the amp, it really isn't the pots that are the
> > main problem, it's the switches. They are rotary switches, not sliding
> > switches. I guess that's why I was thinking pots.
>
> OK. Often, giving them a squirt of propan-2-ol (sorry, rubbing alcohol
> :-)) and turning them vigorously back and forth will cure that.

I'll try it. Looking at the thing, yet again, I realize that I do
indeed have 1 dual concentric shafted pot. The Balance is on the same
knob as the Volume.

Chad Fernandez
Michigan, USA
Received on Wed Feb 20 2002 - 23:06:22 GMT