Hey foiks, so Im going to build my first generator using Ed Lenz's design for his 6.5' machine. His design is for a 12v alternator, using 40 turns of 14# wire. I would like to make a 24v machine instead, so given everything else remains constant, Im going to use 80 turns instead of 40. My problem is im not certain what # wire to use to ensure I dont run out of room in the 1/2" thick stator. Is there some formula that can tell me the smallest # wire I can use and expect the coil to remain approx the same size, so that it will fit the same stator. Thx folks!!!