Tattoo Machine Parts, Coil Sets Plain Coil Sets, Tips on soldering,
The two middle wires next to the core you will twist together and soldered together.
Rear Coil: The wire next to the edge you will attach to the rear standoff solder lug.
Electromagnetic Coils for Tattoo Machines Sets 8 Wrap Coils, 10 Wrap Coils, 12 Wrap Coils