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| Here's a way to rig up a liver quivering BUZZCOIL that runs good on twelve volts. They find much use on early spark plug ignition systems , flame thrower exhausts , and testing your bladder . The relay in question is a 12V NC/NO . The coil is a 12V with internal resistor for space requirements . Follow the "Essentials " link at upper left to find all the parts in one box |
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