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blog-smith-monica-2017-11-10-fessenden-synchronous-rotary-gap-transmitter-brant-rock-1906-wikimedia-commons-750-inline-edit.jpg

View of Fessenden AC generator and synchronous rotary gap transmitter, showing the drive belt in the foreground, the inductors near the roof, and the high pressure capacitors at the right.

Reginald Fessenden’s AC generator and synchronous rotary gap transmitter at Brant Rock, MA, where he made the world’s first voice and music wireless broadcast on Christmas Eve 1906. Courtesy of Michael Thompson, Wikimedia Commons and the New England Wireless and Steam Museum.

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