Bugging devices allow individuals to listen in on conversations from a remote location. The range of the device depends on the sophistication of the components and the obstacles between the transmitter and the receiver. A simple bugging device can be created from just a few items available at a local do-it-yourself electronics store. Once the device is complete, you can hide it in an everyday item like a VHS tape case, hollowed out book or anywhere else you can fit the components and battery pack.
Instructions
1. Remove the circuit boards from the stereo amplified listener and wireless FM transmitter. The process varies from model to model. In general, remove the screws that attach the front and back halves of the devices. You may need to remove the battery case covers to access the screws. Carefully pull out the circuit boards.
2. Unsolder the microphone or microphones from the stereo amplified listener. Plug in the soldering iron. Locate the microphone on the circuit board. All devices will have at least one if not two located near the edge of the circuit board. Hold the hot tip to the base of one of the wires that holds the microphone to the circuit board. The solder will melt and the wire will come free. Repeat this process with the other wire.
3. Unsolder the wires from the microphone. Hold the tip of the solder iron on the wire where it meets the microphone. Remove the wire when the solder melts. Repeat to remove the other wire. This process must be completed on all the microphones from the device.
4. Cut a 6-inch length of black wire for each microphone. Cut a 6-inch length of red wire for each microphone. Strip 1/4 inch of insulation from each of the ends of the wires. Use the soldering iron and solder to attach 1 black wire and 1 red wire to each microphone. Solder the wires to the microphone in the same way as the original wires were soldered. Repeat this step for each microphone.
5. Solder the extended microphones to the circuit board. Solder the red and black wires to the circuit board where the original red and black wires were soldered.
6. Prepare the power wires. Locate the red and black power wires on the stereo amplifier. These are the wires connected to the spring leads for the positive and negative sides of the batteries. Use the wire strippers to snip the lead board away from the wires and strip 1/4 inch from each. Repeat this process with the power wires from the FM transmitter. Strip 1/4 inch from the red and black wires attached to the AA battery case.
7. Extend the power wires. Cut 3 3-inch lengths of red wire. Cut 3 3-inch lengths of black wire. Strip 1/4 inch from each end of each wire. Solder one red wire to the red wire on the FM transmitter. Repeat this process for the stereo amplified listener and the battery case. Solder 1 black wire to each of the black wires on the 3 devices. Cut 6 1/2-inch lengths of heat shrink tubing. Slide 1 length of tubing onto the extended black wire of the FM transmitter until it covers the soldering point. Hold a flame 1 inch under the tubing to make it shrink wrap the soldered area for protection. Repeat this process to protect each of the solder points on the other extended power wires.
8. Splice the power wires together. Insert the ends of the 3 red power wires into a wire nut and twist it clockwise to splice the wires together. Repeat this process with the 3 black wires.
9. Plug the FM transmitter's ear phone plug into the stereo amplified listener's ear phone jack.
10. Test the system. Insert AA batteries into the battery holder. Turn the switches on the circuit boards of the transmitter and the amplified listener to "ON." Turn on the FM receiver. Tune the receiver to the frequency of the transmitter. Consult the transmitter's user manual for the default frequency settings. Place the bugging device in a room with ambient noise. Walk to another room with the FM receiver and verify that the bugging device transmits the signal to the receiver.
Tags: power wires, Repeat this, amplified listener, black wire, black wires, circuit board
