w2cqm@juno.com wrote:
>
> I'd like to clean a pocked marked air variable aluminum capacitor by
> etching the surfaces. Is there some commercial or hombrew product I
> could use to dip the component and achieve that result? Any
> suggestions would be appreciated. Ron W2CQM/3
I've done this by taking the capacitor apart and using 400 and 800-grit
sandpaper, such as is used for automobile finishing, followed by
polishing on a buffing wheel. Although lye will etch aluminum, it
doesn't give a smooth finish, and I don't know how you'd get the residue
off without taking it apart anyway.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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