need a reliable metal dector

[Prototypn45]

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.

 

[Roff]

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.

If you knew where it was, then it wouldn't be lost.

Do a Google search for "metal detector schematic". Make sure you spell each word correctly.

 

[chemelec]

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.

**broken link removed**

Take care.........Gary

 

[Johnson777717]

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:

 

[Johnson777717]

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.

Chemelec: Regarding your Electro-etching process: What kind of ink are you using for the etch resist? Sharpie?

 

[In Lupus Corpore]

Shoulder exercise?

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: