How to Make DD Coil for Metal Detector Admiral

One note: After shielding the coils is better to cover with duct tape. Ebay Store - https://www.ebay.com/usr/hobbytv-the_... PCB for Metal Detector Admiral-Classic - https://www.ebay.com/itm/185757756817 MD Admiral Two Tones Kit - https://www.ebay.com/itm/186025966057 Searching Coil Housing 11 inch DD Shell - https://www.ebay.com/itm/185796379040 Searching Coil Housing Shell 12x10 inches SEF - https://www.ebay.com/itm/185617229805