[sdiy] How to repair potentiometers from a Moog parametric

[Mike Beauchamp]

Are these CTS pots? I recently cleaned up some old CTS pots on a
Fender amp recently and these look exactly the same. I actually
replaced a few of the pots with new ones as well, and the new
production units appear unchanged.

My catalogue says that these are available from 3k - 3M, but I'm sure
the manufacturer makes even more values. If you can't find the one
you're looking for, you can also fake it by adding resistors across
the the conductive element and/or wiper for an approximate match
(http://www.geofex.com/Article_Folders/potsecrets/potscret.htm)

Hope that helps!

Mike


On Tue, Sep 27, 2011 at 10:17 AM, Florian Anwander
<fanwander at mnet-online.de> wrote:
> Hello,
>
> a buddy of mine bought an Moog Parametric which was sold quite cheap because
> the potentiometers were described as "very noisy". In fact the
> potentiometers a worn out to a degree I have never seen before:
>
> http://fa.utfs.org/diy/moogparametric/IMG_0164_sm.jpg
> http://fa.utfs.org/diy/moogparametric/IMG_0165_sm.jpg
>
> Now: how to repair those? Usually I'd say, buy a standard potentiometer from
> the same brand, take the resitance pcb and implant it to the special
> potentiometer. But in this case I even do not know the brand, neither where
> to get them.
>
> Any hints or ideas?
>
> Florian
>
> PS: this is crossposted to AH and SDIY. If you are on both lists, please
> answer on SDIY. If I get a useful solution, I will forward it to AH.
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-- 
[mike]