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[AMPS] Cleaning aluminum variable capacitors

To: <amps@contesting.com>
Subject: [AMPS] Cleaning aluminum variable capacitors
From: w7xu@dtgnet.com (w7xu)
Date: Sun, 23 Dec 2001 05:08:51 +0000
Hello all,

Another source of polishing would be to use a case tumbler
used to polish cartridge cases when reloading ammunition.
Walnut shells or ground up corn cobs are used as media, and
are available at sporting goods stores. I haven't tried
aluminum in my tumbler, but brass certainly comes out nice
and shiny.  (Incidentally, although called tumblers, the units
I'm talking about are more of a vibrating tub than anything
else). 

73,  Arliss  W7XU  

n0tt1@juno.com wrote:

> One very interesting bit of info was received on how USA
> manufacturers polish the plates and round the edges by using
> a mixture of walnut shells in a tumbler.  Now if a guy had a
> jeweller's "rock tumbler" and the right polishing compound (like
> some crushed walnut shells) that would be interesting to try!
>

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