Pi Pinpointer

[BKY1337]

Does anybody know the shematic of this pinpointer: https://www.youtube.com/watch?v=Spcio0bolqo ?

Or similiar one.

[dom44]

That's not a pin pointer that's a metal detector wont help you find a small coin in a pile of dirt would be like running the metal detector head over it again. i did build a pin pointer using the pirate pi metal detector was quite sensitive just use a ferrite core coil instead of the normal loop coil.

[6666]

Does anybody know the shematic of this pinpointer: https://www.youtube.com/watch?v=Spcio0bolqo ?

Or similiar one.

Here is the website that shows all the details of the pinpointer conversion

http://www.imede.it/contenuti/ShowAr...ettronica&c=29

[chemelec]

With some Practice, you can pinpoint objects using a PI detector, even with a large Coil.

[BKY1337]

Thanks, the russian pirat looks easy, I have a VLF detector and i need a pinpointer.
I think i can easier find coins with more depht than just 3-4 cm.

Is this strong pinpointer the italian one?

[dom44]

the PI pin pointers are good but heavy on battery consumption i just built the FM2 but involves programing a pic chip but excellent sensitivity and discriminates as well.

[BKY1337]

Are there equivalents for IRF740 and TL072?

Because i have all parts except this two.

[kt315]

With some Practice, you can pinpoint objects using a PI detector, even with a large Coil.

Gary, i had put a video with a man pinpointing object with ramka coil 1mx1m. this name "by edge" or "on edge".

look 1:27

https://www.youtube.com/watch?v=ATLehDsygGs

[surfdetector]

Are there equivalents for IRF740 and TL072?

Because i have all parts except this two.

TL072 Equivalent ICs

LM358, NE5532, OPA827, LT1972, ADA4610-2

Alternatives for IRF740

IRFB13N50A, UF450A, SSF13N15