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Bugs (Electronic) & Detectors

Bug Detector #1:

Bug Detector #2:

FM Radio Bug:

FM Radio Telephone Bug:

Simple Phone Tap:

Surveillance Transmitter Detector: This circuit can be used to "sweep" an area or room and will indicate if a surveillance device is operative. The problem in making a suitable a detector is to get its sensitivity just right, Too much sensitivity and it will respond to radio broadcasts, too little, and nothing will be heard.

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