need a reliable metal dector

Prototypn45 said:

does anybody know where i could find a metal dector circuit that is reliable and accurate? please help me!!!

PS: i lost my brother's knife in my yard but i don't know where it is.

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A bit of an overkill to just find a knife, but there are 2 good PI detectors in my projects. Hopefully you can use it to find other stuff.

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Johnson777717 said:

maybe dragging a large magnet across the yard will be a lower cost, less development approach. Harbor freight sells a 100Lb pull magnet for about $8 US. Might be a good shoulder strength exercise as well :wink:[/qu

Fishing for a knife with a magnet makes more sense if the knife contains enough unreacted ferrous metal. Still, there's something fishy about this tail. :!: :shock:

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