How to Turn a Calculator into a Metal Detector

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Calculators Detector DIY Homemade Items Metal Treasure

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  • Updated: 26-Aug-08
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  • Added: 24-Jul-08

Turn a normal calculator into a metal detector. With this improved model, you can increase detection depth range to about 6-10 inches and eliminate the static noise interference.

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How to Turn a Calculator into a Metal Detector

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