Hello Gordon,

Thanks for the tips.

I think the eBay man to whom you refer is Chipforbrains: I e-mailed
him maybe a year or two ago, but didn't get a reply. Might be worth
trying him again as he seems quite busy.

As I recall from the 707 service notes, the pot is a dual 50KB, so
you're right, replacing it with a 100K ohm would work, but
unfortunately, try as I might, I just can't seem to track down on of
the correct dimensions to use as a drop-in replacement.

The hard-wired 75% volume solution would work too, but I am really
trying to restore this machine to it's former glory.

Thanks.

MDA231.

--- In tr-707@yahoogroups.com , Gordon JC Pearce <gordon@...> wrote:
>
> On Sun, 2007-06-03 at 00:12 +0000, mda231 wrote:
> > Hello All,
> >
> > Does anyone know where I might find a main volume pot for a TR-
707
> >
> > Thanks in advance.
>
> There's a guy on eBay who sells a lot of Roland spares. Perhaps
one
> from a similar instrument would work.
>
> You may also be able to find another pot about the same size that
will
> physically fit, or could be made to fit. You're probably looking
for
> something about 100K, log taper.
>
> If the pot is damaged or scratchy, you could just replace it with a
> couple of resistors so it's hard-wired to about 75% volume.
>
> Gordon
>