Electric Chair Joule Thief

Step 3: The "Helmet"

The helmet is used as the positive connection to the battery and, for mine, was where I put the L.E.D. from the joule thief. It really doesn't matter what you use for the helmet, in fact you should really be more creative than me and come up with something much more cool. I used a cap from some CD cleaning solution. As for the springs, I used one from a free L.E.D. flashlight I had lying around, and another spring my friend got me from his work.

First off, grab your dremel tool or something that can drill a small hole through plastic and drill a hole big enough to put your L.E.D. in.

Once in, drill a hole in the side near the sealed end of the cap, this is where the positive wire will go through to connect to the spring you will later put inside the cap. I fed the wire in and out the open end of the cap, then soldered on my spring and fed back in. I also hot glued the L.E.D. and spring in place once I had the spring in position.

Done and done, back to the chair!