On Sep 26, 7:34 am, "David Martel" wrote:
Joe,

About 30 yrs ago I heard a joke about semiconductors. The joke was that
they worked with smoke. If you hooked them up wrong or abused them the smoke
escaped and they stopped working. Hope that clears up your confusion.

Dave M.

Smoke AND mirrors, the mirrors keep the smoke inside - let it out and
they don't work anymore plus you've bought yourself seven years bad
luck.