[Amps] conductive grease for roller inductor

[Alex Eban]

You can try Noalox (as per antenna joint compound). It should remove the
grime and prevent reformation as well.just try hard not to put on too much,
since it can develop conductive paths between coil turns and make all kinds
of sizzling noises.
Alex	4Z5KS

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of DAVE WHITE
Sent: Friday, November 23, 2012 3:27 PM
To: Ralph Young; Eddy Swynar
Cc: amps at contesting.com
Subject: Re: [Amps] conductive grease for roller inductor

Perhaps try petroleum jelly?  Thids is sold under the trade name "Vaseline"
here in the UK. It's commonly used on car battery terminals as it's (a)
conductive (at DC, I don't know about RF) (b) corrosion prevention and (c) a
lubricant

Dave G0OIL

--- On Thu, 22/11/12, Eddy Swynar <deswynar at xplornet.ca> wrote:

From: Eddy Swynar <deswynar at xplornet.ca>
Subject: Re: [Amps] conductive grease for roller inductor
To: "Ralph Young" <ralry at chartertn.net>
Cc: amps at contesting.com
Date: Thursday, 22 November, 2012, 18:51


On 2012-11-21, at 2:15 PM, Ralph Young wrote:

> I have a Nye-Viking tuner with their home made roller inductor.   The 
> roller has seized up on the shaft that guides it along the inductor.   
> They used some sort of conductive grease on the shaft and a few other 
> places on the inductor assembly to improve contact.   Does anyone have 
> a source for a conductive grease I can use on the roller once I get it 
> all apart and freed up?
> 


Hi Ralph,

Once you get that puppy free & loose of its moorings, lube any & all contact
surfaces in the future with ordinary CASTOR OIL...

That's what I do here with my THREE roller inductors that I employ in two HB
transmatches, & a HB linear amplifier. Don't go overboard with the
stuff---use just enough to coat the surfaces smoothly, preferably after a
complete pass, or to, of the mechanism after you've oiled it.

The maintenance & tooling department at GM in Oshawa used to do the castor
oil trick on ALL of their electro-mechanical devices back in the day---and
it works, too, but you'll probably have to re-visit the device after a
couple of years, or so, to "freshen" it up.

~73~ de Eddy VE3CUI - VE3XZ

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