Now circulating within the array of music and a fun junk box full of content on YouTube is tradecraft secrets of cold war espionage Macgyver and Philby DIY tricks and projects that made MI-6 a very cool operation in the 20th century.
User DaveHax, who features an appropriate British accent, instructs internet users how to make a microphone or listening device out of a matchbox and assorted supplies. Before the onset of inconspicuous bugs and other innovative hardware, this method was probably used a time or two, especially in regimes where search and seizure at ports of entry was standard protocol. Using the principles of K.I.S.S., the technology could probably be utilized effectively in contemporary times.
The method for building the microphone device is simple, and parts include pencil leads, two wires with clips, a battery, a pair of headphones and of course, a matchbox. Why buy an expensive baby monitor, when you can build something just as reliable for less than $5? Just don’t forget to change the battery and remember to never leave home without carrying matchbox, it could come in handy.
WATCH: Build A Homemade Microphone
