1913 in radio
Events
- January 31 – Edwin Howard Armstrong first demonstrates the employment of three-element vacuum tubes in circuits that amplify signals to stronger levels than previously thought possible and that could also generate high-power oscillations usable for radio transmission; on October 29 he applies for a United States patent covering the regenerative circuit.[1][2]
- Spring – Lee de Forest utilizes the feedback principle operate a low-powered transmitter for heterodyne reception of the Federal Telegraph Company's arc transmissions.[2]
- November 12 – The International Convention for the Safety of Life at Sea is convened in London and produces a treaty requiring shipboard radio stations to be manned 24 hours a day.
- Late – Lee de Forest is acquitted of stock fraud in connection with the Radio Telephone Company in the United States.
- The Marconi Company initiates duplex transatlantic wireless communication between North America and Europe for the first time, transmitting from Marconi Towers at Louisbourg, Nova Scotia, to Letterfrack in Ireland.
- The cascade-tuning radio receiver is introduced.[3]
- Lee de Forest publishes a description of his Audion triode detecting or amplifying vacuum tube.[4]
Births
- May 25 – Richard Dimbleby, English broadcast news presenter (died 1965)
- May 31 – Peter Frankenfeld, German comedian (died 1979)
- June 25 – Cyril Fletcher, English comic monologuist (died 2005)
- July 6 – Gwyn Thomas, Welsh writer and broadcaster (died 1981)
Deaths
- November 6 – Sir William Henry Preece, Welsh wireless telegraph engineer (born 1834)
References
- U.S. Patent 1,113,149, granted October 6, 1914.
- Lewis, Tom (1991). Empire of the Air: the men who made radio. New York: Edward Burlingame Books. pp. 77, 87, 192. ISBN 0-06-098119-9.
- "Radio/Broadcasting Timeline". CBN History. WCBN. Retrieved 2019-10-23.
- De Forest, Lee (1913). "The Audion — Detector and Amplifier". Proceedings of the Institute of Radio Engineers. New York. 2: 15–36.
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