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Circuit Sniffing |
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Pick up electrical activity in the air around you... You will need:
Switch radio to AM. Move it around electrical appliances: flourescent lights, electric motors, computers... Fire a camera flash. Also try FM. You can also use a simple coil of wire and an amplifier to pick up electromagnetic signals. A telephone pick-up consists of yards of copper wire wrapped around an iron slug. This coil acts like a radio antenna for low frequencies. Take a hundred feet of ordinary insulated wire. Wrap it around a wooden armature. Solder one end of the wire to the tip of a plug that fits into your amp and the other end to the sleeve. |