51 High-tech Practical Jokes for the Evil Genius

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Project 30—Strong Pulse Shocker

Figure 7-12 Wiring completed

to determine the pair with the lowest resistance, or simply look at the color coding of the wires. A three-wire transformer secondary will often have two wires of the same color and another different colored wire. If this is the case, use the different colored wire, and either one of the same colored wires for the highest power output. Wiring is very easy, as shown in Figure 7-12— just a battery and a switch connected to the transformer. Notice that one of the secondary wires is simply unused, so it can be taped off out of the way. Test the unit on yourself before putting the guts into a case to make sure it’s working properly. You should feel a strong single-pulse shock that makes your muscles twitch for a split second as the induction occurs. Hey, I told you it would hurt more than the last unit, didn’t I? Remember, if you can’t handle the shock from your own evil inventions, then don’t expect anyone else to—it’s the golden rule of making shock devices, pal. Next, conceal the internal components so that you can see your good buddies jump like pole-vaulting athletes. The delivery of angry electrons to the victim’s hands is similar to the last project, but we are not requiring the connecting of the two wires since this is done automatically by the motion switch. The idea is to ensure that both output wires are touching the operator’s hand or hands when the

Figure 7-13 Shock delivery plates

motion switch is activated so that they get a shock. If they hold one wire per hand, then the shock will travel through both arms and seem a lot more intense than if it was delivered only to one hand through both wires. But make no mistake, they will jump nonetheless. I opted for the shock-to-onehand option since it was simpler to implement and took up less space. As shown in Figure 7-13, a small plastic PVC box from the hardware store has

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