On Mon, 2008-03-31 at 18:12 +0000, mda231 wrote:

> the other is an open circuit, so I guess I'd have to find out where
> the "break" is and bridge it.
>
> - Any suggestions you might have about the best repair technique would
> be gratefully received.

Chances are it's gone at one end. Measure between the wiper and each
end, and see if you can work out where it is. You may be able to repair
it with a tiny dot of conductive paint.

Gordon