Any DIY for 18inches DD coil for minelab gpx5000?

[Bhathu saaii]

Hello guys. I just wanna ask if how could i make a DD coil with 18inches diameter with 18.75khz of transmitter? Also with the inductance of 300uH in tx and 0.4ohms resistance. And the rx of 450uH inductance. Thanks a lot for those who can help

[Qiaozhi]

So far you have made 10 posts in the forums, and at least half of them are asking more or less the same question.
You only need to ask your question once, and not multiple times.

[Bhathu saaii]

So far you have made 10 posts in the forums, and at least half of them are asking more or less the same question.
You only need to ask your question once, and not multiple times.

sorry admin. i won't forget it ^_^

[RS_Phil]

Coil of Minelab GPX5000 is not DD coil it is Concentric Coplaner coil, about the turns I don't know maybe try to find out for your self and make the experiment with it.

[Bhathu saaii]

Coil of Minelab GPX5000 is not DD coil it is Concentric Coplaner coil, about the turns I don't know maybe try to find out for your self and make the experiment with it.

thanks a lot dude..but i have seen their DD coil and it's too expensive. im using concentric and the depth is not that good