Lee de Forest
Lee de Forest · Credit Line: The National Cyclopedia of American Biography, courtesy AIP Emilio Segrè Visual Archives, T. J. J. See Collection, CC0, Wikimedia Commons
Person

Lee de Forest

1873 – 1961 · aged 88

American inventor (1873–1961)

Born
26 Aug 1873 · Council Bluffs
Died
30 Jun 1961 · Hollywood

Life timeline

Their life from birth to death. On the timeline, world events of the time are shown faintly.

Showing 101 years
  1. 26 Aug 1873BornBorn in Council Bluffs
  2. 1922AwardIEEE Medal of Honor
  3. 1923AwardElliott Cresson Medal
  4. 1929AwardJohn Scott Award
  5. 1946AwardEdison Medal
  6. 1960AwardAcademy Honorary Award
  7. 30 Jun 1961DiedDied in Hollywood

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Meanwhile in the world

Major world events during their lifetime (1873 – 1961).

  1. 18961896 Summer Olympics
  2. 1898Spanish–American War
  3. 1904 – 1905Russo-Japanese War
  4. 1914 – 1918World War I
  5. 1915 – 1923Armenian genocide
  6. 1917Balfour Declaration
  7. 1917February Revolution
  8. 1917October Revolution
  9. 1917 – 1922Russian Civil War
  10. 1919 – 1920Paris Peace Conference
  11. 1920Treaty of Versailles
  12. 1933 – 1945The Holocaust
  13. 19341934 FIFA World Cup
  14. 19361936 Summer Olympics
  15. 1937 – 1945Second Sino-Japanese War
  16. 19381938 FIFA World Cup
  17. 1938Munich Agreement
  18. 1939 – 1940Winter War
  19. 1939 – 1945World War II
  20. 1940 – 1945Auschwitz concentration camp
  21. 1941Attack on Pearl Harbor
  22. 1941 – 1945Eastern Front
  23. 1941Operation Barbarossa
  24. 1942 – 1943Battle of Stalingrad
  25. 1945Atomic bombings of Hiroshima and Nagasaki
  26. 1945 – 1946Nuremberg trials
  27. 19501950 FIFA World Cup
  28. 1950 – 1953Korean War
  29. 1953 – 1959Cuban Revolution
  30. 19541954 FIFA World Cup
  31. 1955 – 1975Vietnam War
  32. 1956Hungarian Revolution of 1956
  33. 1956Suez Crisis
  34. 19581958 FIFA World Cup
  35. 1959Antarctic Treaty System

Biography

Lee de Forest (August 26, 1873 – June 30, 1961) was an American inventor, electrical engineer, and early pioneer in electronics of fundamental importance. He invented the first practical electronic amplifier,

the three-element "Audion" triode vacuum tube in 1908. This helped start the Electronic Age, and enabled the development of the electronic oscillator. These made radio broadcasting and long-distance telephone lines possible, and led to the development of talking motion pictures, among countless other applications.

He had over 300 patents worldwide, but also a tumultuous career – he boasted that he made, then lost, four fortunes. He was also involved in several major patent lawsuits, spent a substantial part of his income on legal bills, and was even tried (and acquitted) for mail fraud.

He was recognized for his pioneering work with the 1922 IRE Medal of Honor, the 1923 Franklin Institute Elliott Cresson Medal, and the 1946 American Institute of Electrical Engineers Edison Medal.

Text from the Wikipedia article Lee de Forest, CC BY-SA 4.0

About this information

Dates and life events come from this person’s Wikidata entry.

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