[sdiy] potentiometer lubrication - the definitive answer?

[Bob Weigel]

I'm sure it varies a bit but generally some kind of dielectric grease I 
believe.  That's what works great to restore them anyway.  -Bob

Julian wrote:

> I have a synth here that the pots dont feel right on.  Theyre not 
> necisarily noisy, but they feel kinda loose and almost gritty.  Gritty 
> is a bit extreme, but not smooth.
>
> Now ive spent some time reading both in the archives here, on vintage 
> hi-fi forums, and elsewhere on the web, and there are so so many 
> conflicting commnets on both pot cleaning and lubrication.
>
> Evreything from wd40 to vasalene is mentiond in some way or other, 
> generally in equal parts of love and hate.
>
>
>
> Does anyone have any trade experiance of pot manfacture, and can give 
> some definative answers as to whats used to lubricate pots?  And, 
> specifically where its applied (on the wiper / track and/or on the 
> shaft / body interface)
>
> (ssshhh you kids at the back there!)
>
> At present, ive been using a spray branded by servisol, which, 
> although it does a good job of removing grime (and hence pot noise) it 
> can end up changing the feel of the pot if youre not carefull in the 
> same way as the pots on the synth im working on now in fact....
>
> Would the answer be to use a mainly solvent based spray, and then 
> apply new lubricant afterward?
>
> Like i said, this question comes round all over the place, and noone 
> seems to be able to give a 100% clear answer on whats general policy 
> in manufacture, just what they do themselves...
>
> Any comments?
>
> Cheers, Julian
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