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He also attaches a crude receiver to the back of an assistant who roams the streets of New York City as a publicity stunt. The San Francisco earthquake kills 3,000.īy 1908 our friend Hugo Gernsback publishes the first radio magazine called Modern Electronics, promising "Everything for the Experimenter. By adding a grid wire to Edison’s Diode tube Lee De Forest invents the triode, or audion tube making amplification a reality. Around 1906 the term radio first begins to appear in print as a synonym for wireless. Scheduled broadcasts were still in the future, and their exact arrival on the scene is another source of historical debate. Mariners at sea were his intended audience. He read Bible passages and played O Holy Night on the violin. Fessenden’s 1906 Christmas Eve program that marked the start of entertainment radio. It’s a diode much like Edison’s earlier invention.Īnd while there’s some disagreement as to who transmitted the first voice and music “broadcasts,” many believe it was R. Learn more about early car radios HERE.Ī chap name Fleming develops a tube he calls the Fleming Valve in 1905. No push buttons or cassette deck though, and not much to listen to.

Lee de Forest shows off a car radio at the 1904 St. In 1904 immigrant Hugo Gernsback launches the Electro Importing Company of New York City to sell wireless equipment to early experimenters. The Wright Brothers take flight in 1903 and Valdemar Poulsen patents an arc transmission scheme that generates continuous radio waves, producing a frequency of 100 KHz, receivable 150 miles distant. Wireless telegraph services link the five Hawaiian islands.You can build your own wireless telegraph systems using a kit containing all the parts and plans for only $8.50. Marconi spans the Atlantic Ocean via wireless in 1901. Fessenden transmits human speech over the air.