Home made BFO Metal detector. I read a couple do it yourself metal detector write ups in the Web as well as one in page that looks exactly like one on one side. So I decided to make my own as well. But I mostly composed of it when I went to information on the Web.
Examples of metals that have good magnetic properties with a marked electrical insulation are ferrites, obtained by pressing metal oxides. The detector is not suitable for the discovery of buried coins, for which it is not strong enough. The more fanciful things, like bombs or treasures.
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