Image: Fessenden alternator transmitter (1906)
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Description: Fessenden alternator transmitter at Brant Rock, Massachusetts
Title: Fessenden alternator transmitter (1906)
Credit: Illustration on page 49 of the January 26, 1907 issue of The American Telephone Journal, magazine, included in the article "Experiments and Results in Wireless Telephony" by John Grant
Author: Uncredited magazine article illustration
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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