Picture of How to build a taser for free
This is a very easy, very fast and not to mention FREE way to build a "taser".
Remove these adsRemove these ads by Signing Up

Step 1: Parts

Picture of Parts

- Disposable Camera - You can get a free*, used disposable camera anywhere film is developed


- Soldering Iron
- Copper wire
- Electrical tape

*I've gotten all of mine for free, but I've heard of other people spending up to a quarter for each camera.

Step 2: Take it apart

Picture of Take it apart
Tear the camera apart. Don't worry about breaking it (it was free!!), all you need is the circuit.

Step 3: Charge it up

Picture of Charge it up
C:\Documents and Settings\Josh\My Documents\My Pictures\from phone\04-04-07_1620.jpg
Stick the battery from the camera in the back of the circuit (Get the polarity right). You might want to use electrical tape to secure it because it tends to fall out.

Then hold the button for a few seconds. You should hear a high-pitched whine. When the whine stops your capacitor is charged.

Stay clear of all the metal parts when the battery is in, or when it is charged. You might even want to electrical tape over all but the capacitor contacts.

Step 4: Have fun

Picture of Have fun
Test your new taser one something/someone by touching it/them with both capacitor contacts.

Most capacitors are charged from 300 to 360 volts with very low amps (didn't even register on my multimeter) so you dont need to worry about hurting anyone too bad (I've been shocked quite a few times).

If you want, you can even take out the capacitor and solder wires in its place. The voltage stays the same and the shock is constant (as opposed to the quick discharge of the capacitor), but it doesn't hurt quite as bad. I think the trade is worth it. It will still make your arm twitch pretty good.
mrwaffles23 years ago
Wow I built one of these after doing a little research and I must say they work great! Even though I am (defiantly) below the age where I can legally buy a taser I am guessing that this is almost as good.
hellwarrior3 years ago
The proper way to discharge these capacitors is to create a little jig out of 100k thru hole resistor. Take a pair of INSULATED needle nose pliers and bend the leads down like you were going to put them thru a pcb. Next step is to match up the polarity of the leads. The longer lead is the positive on the resistor. The capacitor should be marked on the can. Next holding the resistor gently with the pliers carefully touch the leads of resistor to the leads of the capacitor and keep them their for about 15 seconds or until your comfortable. You will know it works if the resistor is hot. I have found it helps to do this with the camera partially dissassembled in a panavise junior. This way you can concentrate on just keeping your hand from shaking the first time you do this! Sparking the cap with a screw driver while pretty and cool is very bad for the capacitor. Not to meantion you could hurt yourself or fuse the screwdriver to the lead on the capacitor! Hope this helps!
acrane43 years ago
I knew to discharge it so I did and it scared the living daylights out of me it sounded like an m-80 firecracker going off.
dliang4 years ago
I was taking this apart and got shocked. Ow.
well no duh of course you'll get shocked
Me too. :(