Re: [amsat-bb] Silicone grease on rotor pots

["Don DeJarnette" <ddej@xxxxxxxxxxxxx>]

I purchased my GE Silicone Grease from Fair Radio, a surplus electronics
company.

http://www.fairradio.com/

Have not checked to see if they continue to have it in stock.

73 de Don KC4YRT

----- Original Message -----
From: Jesse Morris <w4mvb@juno.com>
To: <W10191@motorola.com>
Cc: <amsat-bb@AMSAT.Org>
Sent: Monday, July 09, 2001 7:41 PM
Subject: Re: [amsat-bb] Silicone grease on rotor pots


> Hi Wayne,
>
> I was the one who posed the item about the use of silicone grease on the
> rotor control pot. My azimuth rotor is an old CDE TR-44 and has been back
> up for about two years now with the grease on the pot and it is still in
> good shape. I have only one spot at SSE that is bad and it was bad when I
> got it up.
>
> You do have take the "bell" top off the rotor to put the grease on but
> you have to do that anyway if you are going to do anything else to it.  I
> first cleaned the pot (which was almost new) with alcohol, put a small
> amount of Detoxit on it and then coated the winding with a very thin
> layer of the grease.  I guess the wiper tension gets through the grease.
> I think the grease keeps the moisture out of the windings of the pot and
> keeps it from oxidizing or corroding.
>
> I remember this grease being originally was made by Dow Corning and I
> think it had a designation of DC-3 or DC-4.  I have always called it Dow
> Corning gut the stuff that I have now is not made by them.  The tube I
> have (which I've had for maybe 8 or 10 years) has a military stock number
> on it and is listed as "Silicone Compound - General Electric G624"  It
> was made by R.H.Carlson Co. in Greenwich, CT in 1990.  I have no Idea
> where I got it. ( I probably wouldn't tell if I did know!)
>
> Hope this helps.
>
> 73's de Jess - W4MVB
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