Soldering iron Enamel coated wire On/off switch Scotch tape Flat head screwdriver Pliers Core wire Wire strippers Sandpaper A circular object about two inches in diameter. [1] X Research source
A multimeter is a tool that measures the electric voltage of a circuit. You don’t need one, but it will tell you the voltage of your capacitor.
Once the initial spark has sparked, you shouldn’t need to redo this. As you remove the board, continue checking the soldered sealants on the circuit board by the capacitor. You do not need to slide the screwdriver’s tip hard. Don’t damage the rest of the circuit board checking for active energy. [4] X Research source
Remove the battery from the device before continuing. [5] X Research source
Coat the finished wiring with tape so it’s secure. Slide the windings off the object. Cut the terminals of the coils to the desired length, but make sure you leave yourself enough room to work with. [7] X Research source
Solder onto the opposite side of the switch.