Step 1: Materials
-PC Board (Radioshack-$2.00)
-2 NPN Transistors
-9 Volt Battery
-Piezo Transducer (Noise-Maker)
-0.47 uF 50v Capacitor
-9v Battery Clip
Step 2: Step One: Setting It Up
2. Put all of the components into the holes of the PC Board, evenly spaced, but only taking up half of the board. Make sure the Phototransistor is in the middle of the front of the board, so it can stick out the hole int the Altoids container.
Step 3: Step 2: the Circuit
Step 4: Making It Work
To make the tazer work, put the PC board in the Altoids container carefully, letting the phototransistor stick out of the hole in the Altoid container. Make sure the piezo transducer is on top of the board, and connect the battery clip to the battery. Put the battery on top of the board where there is no components. Close the lid, and touch the front of the coontainer (with the phototransistor sticking out) to your pants or shirt. It should make a buzzing, electrifying sound.
HAVE FUN! Disconnect the battery after use, or the Altoid box will wake you up at night!
Troubleshooting: Make sure all wires are connected, even the battery clip
Make sure you are touching the project hard enough to your clothing