Shakir

Thanks for the informative reply. Yes, it has a small circuit in it, and it is what makes things confusing to me as I know nothing about that. I will attach some pics for that later, as specialists may understand and provide help.

Thanks for the advice,, in fact, I sacrificed the small dd coil that came with the detector and found that one coil has 24 turns (0,5 mm wire) & 88 turns (0,18 mm) .. I think this can help identifying inductance and resistance. The thing that confused me was the way the wires are connected, I could not understand how as I destroyed everything inside 😂.

As long as you have Tesoro, check the link below,, it may help you building your own coil. thanks for your reply https://www.hobbielektronika.hu/forum/getfile.php?id=220348

Hello everybody, I want to build my own large coil (just exactly as GOLD KRUZER GK40 COIL) as I can’t get a new one in my area for certain reasons. Can anyone here help providing: 1- how many turns in RX & TX? 2- size of wire used in both dd coils? 3- the way the wires and shields wires are connected at the bottom and in the connector pins? (the last point confused me, couldnt figure out how they connected those wire!!) appreciate your guide and help.