if it was put on the coil cable? or does it only work on the power side? This is all way above my pay scale. I am new to the forum. But, I have been a lurker for awhile. I currently own 5 CZ detectors-CZ6,CZ6A,CZ3D(tom tuned) CZ7 and a CZ20. I reside in Ohio and primarily hunt old schools and parks. I try to make it to the beach at least once a year.(Va. or Myrtle). I bought my first detector in 1988-Fisher 1210.