[Lowfer] Interesting finding

Fri, 10 Oct 2003 19:26:37 -0500

So what could I do with my aluminum plates and shafts as far as a braid
across the bearings???

Mike>WE0H

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Ed Phillips
Sent: Friday, October 10, 2003 11:05 AM
To: [email protected]
Subject: Re: [Lowfer] Interesting finding

John Andrews wrote:
>
> Bill, et al:
>
> Just a caution on air variables. The weak link is the bearings, which can
> have substantial resistance. I have measured over an ohm resistance in
some
> of them. Use of a silver-impregnated conductive grease can help, but they
> have to be evaluated on a case by case basis.
>
> John A.

        Is it my imagination or did Bill say he was using a "butterfly"
capacitor with no sliding contacts?  (May have gotten that from another
conversation..)  Anyhow, the use of a flexible pigtail connection to
the rotating plates should eliminate effects of contact resistance and
the added inductance should be of no concern at lowfer frequencies.

Ed
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