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

Ben Stuyts ben at stuyts.nl
Wed Jan 20 00:26:48 CET 2021


I have looked at State Electronics for custom pots in the past, but currently I cannot reach their website (potentiometers.com <http://potentiometers.com/>).

Ben


> On 19 Jan 2021, at 20:26, James Coplin <james at ticalun.net> wrote:
> 
> This was my plan re the curve but I have not been able to find any concentric pots except those for guitars which are the wrong size (I think I can work with that) and none in the 10k value. 500k seems avail but its the 10k I'm stumped by at the moment.
> 
> James
> On Jan 19, 2021, at 1:08 PM, Michael E Caloroso <mec.forumreader at gmail.com <mailto:mec.forumreader at gmail.com>> wrote:
>  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?
> 
> They are CCW log tapers which are not very common.
> 
> The best solution would be using a linear taper wafer with external
> resistors to modify the taper.  There's online resources that describe
> the technique.
> 
> MC
> 
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