I have my old Fisher Coin$trike that I'm parting with. The Control box works great. I have a 5" coil on it now that wire insulation was cracking so shrink wrap was used on the wire. The 5" coil still works, just don't take in the water. The original 8" coil stopped working on it after 15 years so I tossed it. Good luck finding another 8" coil for the C$ it's like looking for hen's teeth. They say the ID Excel or Edge coils work on it and again good luck finding one of those as well. I did happen to find a new ID Excel coil from a dealer, who wanted $150.00 for it. So needless to say, I didn't buy it. So if interested, make me an offer.