[R-390] Cleaning sealed pots?

Tue, 20 Apr 2004 22:31:18 -0700

Larry-
unfortunately remove the pot form radio for dissembly/inspection/lube and
or replacement....sometimes easier said than done
Ron

On Tue, 20 Apr 2004 17:06:48 -0500 "Larry Saletzki" <[email protected]>
writes:
> Hi all,
> I maybe coming into the middle of this thread but I thought I was 
> reading
> from the start. The discussion of all the cleaning/lubing agents has 
> been
> great. My question is on a sealed pot.  How do you get the stuff in 
> there?
> Especially if it is buried in a chassis?
> Thanks 73 Larry WA9VRH
> 
> ----- Original Message -----
> From: "ronald j deeter" <[email protected]>
> To: <[email protected]>
> Sent: Tuesday, April 20, 2004 11:55 AM
> Subject: Re: [R-390] Cleaning sealed pots?
> 
> 
> > re On potentiometers
> >
> > lubricants....lubriplate white grease seems to work quite well. 
> another
> > product-tuner lube white lithium grease is also good.
> >
> > anybody have any experience with synthetic lubes????
> >
> > cleaning  isopropyl alchol (100%) is a good cleaner.
> >
> > an old trick to change a pot from linear to log is to use a 
> resistor
> > (standard value as close as possible) about 11% value  (10.9% if 
> you want
> > closer )of the pot from wiper to one side (not across the 
> element). this
> > will be avery good approximate. also gives up or down taper as 
> needed.
> > ie 25K linear taper and a 2.7k or 3k will do fine.
> >
> > Ron
> >
> >
> >
> >
> >
> > ________________________________________________________________
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> >
> 
> 
> 

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