This post caught my eye.
http://lists.contesting.com/pipermail/tentec/2007-September/076862.html
Here is the link for the monthly archive
http://lists.contesting.com/pipermail/tentec/2007-September/date.html
de Doug KR2Q
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If there's an electronic part that seems marginal based on how it works,
it's got to be an electrolytic capacitor. Instead of having plates
electrically isolated by a separate insulator, electrolytics depend upon a
very thin film of oxide forming on one plate to insulate it from the other.
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