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The Mighty Music Box: The Golden Age of Radio. Los Angeles, CA: Amber Crest Books. ISBN 0-86533-000-X; Dunning, John. (1976). Tune in Yesterday: The Ultimate Encyclopedia of Old-Time Radio 1925–1976. Englewood Cliffs, NY: Prentice Hall. ISBN 0-13932-616-2. Ellett, Ryan (2012). Encyclopedia of Black Radio in the United States, 1921–1955.
These include live music performances. [1] 15 June – Australian soprano Dame Nellie Melba becomes history's first well-known professional performer to make a radio broadcast when she sings two arias as part of the series of Marconi broadcasts from Chelmsford in Britain. [3] [4]
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
A family listening to a crystal radio in the 1920s Greenleaf Whittier Pickard's US Patent 836,531 "Means for receiving intelligence communicated by electric waves" diagram US Bureau of Standards 1922 Circular 120 "A simple homemade radio receiving outfit" taught Americans how to build a crystal radio.
May 1895: After reading about Lodge's demonstrations, the Russian physicist Alexander Popov builds a "Hertzian wave" (radio wave) based lightning detector using a coherer. November 1895: Jagdish Chandra Bose sets up a demonstration of radio microwave at the Town Hall in Calcutta where he ignites gunpowder in a nearby room and rings a bell. [30]
The first radio transmitters could not transmit audio (sound) like modern AM and FM transmitters, and instead transmitted information by radiotelegraphy; the transmitter was turned on and off rapidly using a switch called a telegraph key, creating different length pulses of radio waves ("dots" and "dashes") which spelled out text messages in Morse code.
A wave of influential blues performers move to urban areas, especially Chicago, from the rural South. These include Memphis Minnie, Scrapper Blackwell and Leroy Carr. [203] Most radio broadcasting switches from locally produced material to nationally broadcast network programming, causing a decrease in the diversity of music on American radio ...
Chrysler and Philco announced an all-transistor car radio in the April 28, 1955, edition of the Wall Street Journal. [1] This Philco car radio model was the first tubeless auto set in history to be developed and produced. [2] It was a $150 option for 1956 Chrysler and Imperial cars and hit the showroom floor on October 21, 1955. [3] [4] [5]