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Old 01-09-2013
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Re: What's Wrong With This Picture??

Not so for *AC* circuits. Either way, they are in wrong half the time

Quote:
Originally Posted by Brewgyver View Post
Well, I was refering to the indicator (or Pilot) lights in the picture. If they were LEDs the wires would be color coded for polarity. Polarity doesn't matter for neon or incandescent, but it does for LEDs - they will not light with reversed polarity (they're diodes, and a diode only allows current to flow in one direction).
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