[Boatanchors] how to lube a roller inductor?

[Revcom]

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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