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Re: copper plating
Tesla List wrote:
> Original Poster: "Metlicka Marc" <mystuffs-at-orwell-dot-net>
> i then hooked up a 30vdc power supply, the negative clipped to a piece
> of copper tubing and immersed in the sulfate bath, then the positive
> placed into the saltwater inside the cup.
> i now have a 35uf cap placed across the two.
A capacitor for what purpose? Apparently you are getting a thin deposit
due to the small current that leaks through the cup (?). The polarities
appear to be reversed. Usually the copper deposit is obtained in the
negative side, with copper being removed from the positive side.
The standard procedure in these cases is to paint the plastic with
conductive ink where you want it plated, and then deposit metal
over the conductive ink. You need a thick deposit to use it safely
for a high-current capacitor.
Antonio Carlos M. de Queiroz