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Subject: Re: [Homebrew_PCBs] Re: Please critique my first attempt at pcb etching (links corrected)

From: Codesuidae <codesuidae@...>
Date: 2006-02-22

John,

Just wanted to thank you for writing this detailed message, and for the
link to the CapSite page.
Great information, and entertaining to read about the 'greenies', I just
stripped several old monitors for parts before taking them for waste
disposal, and considered pulling a bunch of those. Glad I pitched them
now :)

Dave K

John Popelish wrote:

> It has to do with how big electrolytics are constructed. One "plate"
> of the capacitor is a conductive liquid (the electrolyte that gives
> the type its name). But the other plate is a roll of thin aluminum
> foil with a connection to the capacitor pin. The surface of the
> aluminum is oxidized by an electrolytic process that coats every bit
> with a uniform layer of insulation, after the metal is made very
> porous so it has lots of surface.

[snip]