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Raritan Sonic Polarity Indicator

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Raritan Sonic Polarity Indicator

I'm trying to wire a Raritan Sonic Polarity Indicator (12 volts DC) which also has a separate toggle switch for testing and a LED that lights up.
asked May 24 by chrisclementsrogers-com (120 points)

Thank you very much

1 Answer

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Just make it.  Get a ~2K resistor, a bi color 2 pin led.  Put the resistor in series with one of the led pins.  The other end of the resistor and the second led pin become your test probes.  Connect it one way it will light up in color A, reverse the polarity it will light up in color B and if it is AC it will light up in color C!  Colors A, B, C depending on the two colors of the led you get.  Total cost well under a buck.
answered Jul 14 by gilshultzhome-com (17,730 points)

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