Metal detectors are great fun to use and can make money for you. You can find buried metal items including coins, jewellery,relics,treasure etc. on beaches,in public parks and similar areas.
Searching early inhabited areas may turn up some interesting historical records. If oyu lose some jewellery in your own backyard you can probably find it with your metal detector.
Commercially made metal detectors are available in many models. good ones are expensive however and can run to many thousands of dollars in some cases.
We have free plans which you can download in PDF format to build your own metal detector. One of them is for a combined metal detector,geiger counter,radio. The other shows how to use a transistor radio as a metal detector. you can have a lot of fun with these. Take a look at the plans here: Metal Detectors
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