I have an RIF 14.3 Turbo Coil the fits Fisher F75 and F70 detectors. I got this with an eBay purchase of an F75ltd and it won't be of use to me. I tested the coil and works just fine. Looks to be in excellent condition. Looking for a nice Killer B Optima Wasp headphone or other high end make for even trade. PM me if interested. CONUS only.