Unusual functions of cheap parts
On Sat, 26 Nov 2005 21:40:53 -0500, Boris Mohar
wrote:
On Sat, 26 Nov 2005 15:41:27 -0800, John Larkin
wrote:
On Fri, 25 Nov 2005 10:52:26 +0100, "Frithiof Andreas Jensen"
wrote:
"Henry Kiefer" wrote in message
r-online.net...
Do you know of other interesting devices or circuits good for misuse?
LED's work both ways, as a light emitter and a photodiode.
And optocouplers can do interesting things:
Very simple high-voltage opamp, up to 400 volts p-p.
Isolated totem-pole driver, from a few volts up to 400.
Current limiter.
Low-leakage diode, sort of like an LED painted black.
John
A latch.
Right, if CTR 1.
John
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