Homebrew PCBs

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]