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Old 06-13-2012, 06:52 PM   #2
Bob.Kerns
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Join Date: Aug 2008
Location: Marin County, CA
Posts: 3,783
5 yr Member HT/PT Owner
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Quote:
Originally Posted by Gihgehls View Post
I had to look up what a rheostat was.
Ah, I could go on for hours about old-time hardware that you young folks would just dismiss as grandpa's old-time tall tales.

Relays that had moving parts, and copper sleeves around the coils to make them unlatch after a time delay.

Memory circuits made out of a long wire that is twisted at one end, and read when the twist reaches the other end.

Vacuum tube ROM's using a shadow mask read with an electron beam steered with electric fields.

Displays using electron beams swept back-and-forth with magnetic fields hitting a phosphor behind a thick glass front. Man, those things were heavy!
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Obviously, we can't have infinite voltage, or the universe would tear itself to shreds, and we wouldn't be discussing Segways.
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