China probes DIY enthusiasts

[gyj99999]

Hi!
I come from China, I also I need all kinds of PI detector enthusiast underground metal detector circuit diagram DIY, if you have please send me e-mail: 957284773@qq.com greetings. My English is not good like him to understand!

[kt315]

hello collegue, at first welcome in forum GEOTECH with huge amount of the deep seeking detectors enthusiasts. at second, look this superior Pulse Induction schematic DELTA PULSE. what depth of target you need?