SHOWALL FUN PRANKS HIGH VOLTAGE LAZARUS-64 PHOTOGRAPHY SPY GADGETS VIDEO GAME
Figure 10 - The perforated board circuit is installed in the project box
Figure 10 - The perforated board circuit is installed in the project box

Perforated board is great for small low frequency projects like this. This board can be purchased in 6 inch square sheets for only a few bucks and will allow you to mount all through hole semiconductors into the holes for soldering wires to the underside. Figure 10 shows most of the parts ready to be installed in the small plastic box after building up the circuit on a small bit of perforated board.



Figure 11 - This versions of the Spammer Jammer has direct audio and a phone interface
Figure 11 - This versions of the Spammer Jammer has direct audio and a phone interface

To make this project more versatile, I added the small piezo buzzer into the project box as well as a 1/8 mono jack that would connect to the adapted RJ11 telephone cord. With the telephone jack plugged in, the switch built into the 1/8 jack cuts off the piezo buzzer and send the audio directly into the phone line for maximum delivery. For portable phone use, the small hole on the side of the box is an output from the piezo buzzer, allowing the audio to be directed into the mouthpiece of the phone.

Using the circuit shown in Figure 5, the Spammer Jammer can be made to emit a sound similar to a siren when the variable resistor is turned one way, and will continue to speed up when turned the other way until the sound that comes out is like an annoying digital mess that is truly obnoxious to listen to. Having this device plugged directly into the phone line allows the sound to be fed at maximum volume level to the telemarketers for an earful they will not easily forget. Don't get mad, get even!
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