Tip - Turn a calculator into a metal detector

Published 9 years, 6 month(s) ago | Submitted by Ernie Kwan

I recently discovered a really cool method in using a few household items to make a HomeMade Metal Detector! Heres how to make your own! ...

For further reading: http://www.instructables.com/id/HomeMade-Metal-Detector/

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Posted: 9 years, 6 month(s) ago

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