Well, I hope you find this instructable useful to you, and if you need help or have some questions, or found a error, please make a comment! I like co...
Step 3: Connect to battery and have fun!
Connect either one wire from the primary (the low voltage side) to one terminal of the battery (don't worry, you can connect it any way round). Then bring two secondary wires (the high voltage side) very close to each other (about 2 mm) and then tap the other primary wire to the other terminal of the battery.
And then, you should see sparks on the ends of the secondary wires, and you may hear a little "snap" too!