hand held pin pointers

[Anonymous]

I was hoping and wondering where I could find a simple schematic(s) for hand held pin pointers with a parts list, some thing small & simple so I can put in a pouch while metal detecting with my whites.Hope you can help me out, Much thanks in advance.
P.S very nice board you have going here!

 

[Anonymous]

You might try buying one (White's has an inexpensive unit), opening it up, and tracing out the schematic.
Some electronic hobbyist/surplus catalog outfits (Jameco, All Electronics, probably a few others, maybe even Radio Shack) have inexpensive hobby kits. The lineup usually includes an eddy-current dampened oscillator type metal detector that uses a small ferrite loopstick for a "searchcoil". You could repackage it as a pinpointer. Most inexpensive pinpoint probes work on that principle. If you're into electronics, you could probably fool around with the design a bit and improve it.
--Dave J.