1913 in radio explained

The year 1913 in radio involved some significant events.

Events

• 31 January  - 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 29 October 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]
• 12 November  - 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

• 25 May  - Richard Dimbleby, English broadcast news presenter (died 1965)
• 31 May  - Peter Frankenfeld, German comedian (died 1979)
• 25 June  - Cyril Fletcher, English comic monologuist (died 2005)
• 6 July  - Gwyn Thomas, Welsh writer and broadcaster (died 1981)

Deaths

• November 6  - Sir William Henry Preece, Welsh wireless telegraph engineer (born 1834)

Notes and References

1. which is granted on 6 October 1914.
2. Book: Lewis, Tom. Empire of the Air: the men who made radio. registration. Edward Burlingame Books. 1991. 0-06-098119-9. New York. 77, 87, 192.
3. Web site: Radio/Broadcasting Timeline. CBN History. WCBN. 2019-10-23. 2022-03-01. https://web.archive.org/web/20220301024429/http://www.wcbn.org/history/wcbntime.html. dead.
4. De Forest. Lee. 1913. The Audion — Detector and Amplifier. Proceedings of the Institute of Radio Engineers. New York. 2. 15–36.