[sdiy] How to repair potentiometers from a Moog parametric

[Florian Anwander]

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.