Need Minelab coils, can be bad

[samd12]

I want to try building my own coils so I want to try to tear a couple apart to see exactly what things look like inside. Preferably Minelab compatible and Sovereign compatible would be even better.
Thanks

 

Amazon Forum Fav 👍

Upgraded Night Vision Monocular Digital Infrared Monocular Telescope for 100% Darkness with 8X Zoom - Grab it through Amazon!