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Bad coil test

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  • Bad coil test

    I've always heard, to test a coil, turn unit on, hold the unit in the air and tap the side of the coil or wire and if it sounds off any it can be a bad coil. Is that correct?

  • #2
    Don't think this is always true. Some coils will give of a sound when touched either caused by your hand which influences the coil field, or by mechanical stress which influences the coil properties.

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