[Boatanchors] how to lube a roller inductor?

[Edward Swynar]

Hi Eugene,

I use a VERY small drop, or two, of ordinary castor oil on ALL of the moving
parts of my roller inductors, variable capacitors, etc. here...

It's good for several years, at least, and seems to do the trick for me ---
has done so, too, for some 30 years now...!

~73~ Eddy VE3CUI - VE3XZ


****************************************

----- Original Message -----
From: "Revcom" <revcom at wbsnet.org>
To: <w2hx at w2hx.com>; <boatanchors at mailman.qth.net>
Sent: Saturday, April 04, 2009 5:44 PM
Subject: Re: [Boatanchors] how to lube a roller inductor?


> If I were to think about lubing a roller inductor, I would probably use a
> VERY light coat of silicon lube, it is basically "inert", but the caution
on
> any lube it attracts dust particles very quickly.
>
> To save buying a big tube of it, usually how it comes, might try a two-way
> shop, Motorola packs a small dab in their antenna kits, usually shops have
> it laying around (I do).
>
> Rod
> K0EQH
>
>
>
> ----- Original Message -----
> From: "W2HX" <w2hx at w2hx.com>
> To: <boatanchors at mailman.qth.net>
> Sent: Saturday, April 04, 2009 3:48 PM
> Subject: [Boatanchors] how to lube a roller inductor?
>
>
> > Hi all,
> >
> > I've been working on an automatic/motorized antenna coupler (the
> > transmitter
> > uses tubes and weighs 200 lbs! definitely a boatanchor).
> >
> > There is a gigundo roller inductor that makes a loud squealing sounds as
> > it
> > tunes. I am sure some kind of lubrication would fix this.
> >
> > There seem to be 3 points that could be the source of the squealing.
The
> > front bearing (that holds the shaft), the rear bearing, and then the rod
> > that the roller rides on from front to back.
> >
> > How does one properly lubricate a roller inductor? I was afraid that 3
in
> > 1
> > oil might have a detrimental effect on the conductivity of this.  And I
> > don't want any arcing.
> >
> > What's the right way?
> >
> > Thanks
> > Eugene
> >
> >
> >
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