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07-15-2007, 08:50 AM
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#5 |
  Drives: None Join Date: Mar 2007
Location: Australia
Posts: 193
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You could just use a multimeter. Or for a ghetto check, just put an LED in, as it will only light up when it's the right way around (although it will overheat and blow quickly without a resistor with it). Remember on an LED, flat side = negative and long wire = positive.
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