Re: Couple of coils, FOR WHAT? Home › Forum › Ask A Member › Couple of coils, FOR WHAT? › Re: Couple of coils, FOR WHAT? The Boat HouseReplies: 4549Topics: 111 May 10, 2018 at 11:26 pm #75736 The first coil was used on the Rangers built after WW-II. Possibly others.