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Mario Filippi
Mario Filippi is an amateur radio operator, shortwave listener, electronics tinkerer, idea engine, scooterist, and freelance writer. He is employed as a public health investigator and lives harmoniously with his wife, Edith, dog, Tippi, and cat, Little Miss, in central New Jersey.
Latest from Mario Filippi
03/19/2015
Build a parabolic mic from ordinary hardware, then transmit its sound to any FM radio.
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