I am working on an Apollo pin and was curious if anyone knew what size of coil it uses for the bell. The coil is fried and the paper with the coil i.d. is missing. Also, are there 4 wires that go to the coil? When i yanked the coil out it has two wires soldered on and two wires in the same harness going to a 4 pronged jones plug that plugs into the bottom of the cab on the board where the transformer and relays are.