[sdiy] Dead Unobtainable Concentric Pot, What to do?

Gordonjcp gordonjcp at gjcp.net
Tue Jan 19 09:41:19 CET 2021


On Mon, Jan 18, 2021 at 09:24:56PM -0600, James Coplin wrote:
>  I have an Orban 111B Spring Reverb here that has had scratchy pots since I
> bought it ages ago. It had gotten progressively worse to the point that I
> decided it was time to open up the pots and see what was up. The carbon
> tracks on one of the decks had worn through and was flaking off. Basically,
> the pot is dead. Unfortunately, it's a concentric 10k/500k CCW Log pot which
> I can't find a suitable replacement for. There are other concentric pots
> available but not in that split value -100k/100k, 500k/500k, . I really
> don't want to drill the front panel out unless that's an absolute last
> resort. Anyone have any thoughts on what I could do instead to get it back
> up and running?

Why not buy a 10k pot and a 500k (or these days, more realistically 470k) concentric pot from the same family, then swap the appropriate wafer over?

-- 
Gordonjcp




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