DIY DD metal detector 2 - coin at 35cm, audio indicator, PCB
18:31
DIY DD metal detector 1 - first success
12:40
Metal Detector Discrimination Explained (with a Garret AT Pro)
25:23
DIY pi metal detector | Diy felezjoo pi metal detector | Diy powerful metal detector
13:24
I turn SPEAKER into a powerful metal detector
14:57
DIY deep metal detector with distance indicator light (audience suggestion)
10:52
diy powerful metal detector | diy metal detector using bc547
19:20
how to make a deep metal detector
25:13