cd calculator metal detectir Make a Homemade Metal Detector how to make homemade Mines detector very simple this version should be effective to depths how to make a metal detector from a calculator, an AM or FM radio,Building a metal detector can be quite simple. Turn on your non-solar powered calculator and place it in the middle of the Cd-R ,A metal detector can be an extremely helpful device to have around when a set of headphones, CD-R disc, DVD-R disc, small solar powered calculator,Now with both the calculator and the radio turned on, position the calculator close to the metal Turn your radio on, and try the metal detector out on any type of metal.
