(if you can't see video, go to my channel and see version without banned music !!) Pulse induction metal detector, my DIY (hand made) project. You can find everything about metal detector on this three links ...
by Tracey Beebe
by APPEARANCE design studio
by DIY Amazing Crafts
by Joseph Anthonii
by Mommy Hacks
by Melly Sews
by Anju Sakhi Sewing