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HOW TO TAP A PHONE (Mar, 1957)

MAKE Magazine found this 12/31/2008 on blog.modernmechanix.com

view additional pages HOW TO TAP A PHONE By Tony Karp THERE are many ways to tap a phone; most of them against the law. Our little gadget, however, is quite legal and can be used to great advantage at home or in the office. Basically, the unit consists of a pickup coil, an ...