[sdiy] Oberheim OB-8 - tapco pots

[Roy J. Tellason]

On Tuesday 15 March 2005 01:51 pm, Kevin Lightner wrote:
> >--- "Roy J. Tellason" <rtellason at blazenet.net> wrote:
> >>  And then there's whatever the heck was used in some of the older Tapco
> >> mixers,  on the pot shafts,  which in some cases I know of has solidified
> >> to the point where you can't turn the shaft at all.  Anybody know of a
> >> good solvent for that stuff?  Something that won't dissolve a plastic
> >>  shaft,  anyhow...
> >
> >hmmm let me think...
> >
> >fire ???      :^P
> >
> >H^) harry  (those who have seen these Tapcos know what I mean :^)
>
> A friend of mine used to be the service manager at Tapco, He said they
> called the stuff "Goop" They'd buy cheap pots and add this stuff to make it
> feel like better quality pots with oil damping. Was used in the rack mount
> mixers a lot.
>
> My only recommendation is to take them apart and clean them manually
> or test one in a harsh solvent like MEK or Acetone to see if it survives.

I wouldn't think that acetone would be too terribly kind to the plastic 
shafts.

> On a large mixer, this would be a real drag either way.

If I were dealing with a mixer it would be a read drag in any case,  but at 
this point I have (somewhere in storage) an empty mixer case that I thought 
might be useful at some point,  and a coffee can or so full of pots,  some of 
which won't turn at all.

> Other wise, very hot water might loosen it enough to be rinsed away.
> No easy solution for goop.

Hot water?  Hmm.  I'll put that on my list of things to try.