thanx for your guidance.
pls tell me only one thing more pls, i found following
Pulse Induction Detectors
Corbyn PI (J.A. Corbyn, Wireless World)
EE Treasure Hunter (Mark Stuart, Everyday Electronics)
Gary's Pulse Induction Metal Detector (from Gary's Chemelec web site)
GoldPic PI (Trevor Hill)
Hammerhead Carl Moreland
Microcontroller PI Treasure Hunter (Mark Stuart, EPE)
Proscan PI (ProScan)
Pulsdetektor This is a German web site that has several PI projects, and a discussion forum. No English, but the schematics are easy to figure out.
Sandbanks PI (P.J. Wales, Practical Wireless)
Twin Loop Treasure Seeker (Robert & David Crone, ETI)
pls tell me which 2 or 3 are best to find gold rings and coins under beach sands or beach hunting with 10 to 12 inches minimum depth working detector.
thanks for your guidance
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