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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! ...
All you need for this project is, an: AM Radio , some tape , and a small calculator.
Begin by turning the AM radio on. Tune it to the high end of the AM band, but not directly on a broadcast station. Adjust the volume to the maximum le...
Now with both the calculator and the radio turned on, position the calculator close to the radio till you hear a loud tone
Once, this position is found, tape the calculator to the radio while maintaining the placement. When you done taping it together, make sure its stead...
Turn your radio on, and try the metal detector out on any type of metal. You will notice that the calculator beeps whenever you get close to metal. It...
The reason this works is because the loud tone coming from the radio is the calculators electronic circuit producing a radio frequency signal. That be...
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Posted:Nov 24, 2007
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