De Forest Audion Tube, circa 1908

De Forest, Lee, 1873-19611898/1918

The Henry Ford

The Henry Ford
Dearborn, MI, United States

Dr. Lee De Forest was an inventor, engineer, and the self-styled "Father of Radio." In 1906, De Forest invented the Audion tube, allowing the detection and amplification of weak radio signals. As the first triode vacuum tube, the Audion revolutionized radio broadcasting--and made it more practical. By the late 1920s, vacuum tube radios were the widespread in people's homes.


  • Title: De Forest Audion Tube, circa 1908
  • Creator: De Forest, Lee, 1873-1961
  • Date Created: 1898/1918
  • Location: United States, New Jersey, Jersey City
  • Subject Keywords: De Forest, Lee, 1873-1961, Communication, Radio (Telecommunication system), Triodes, Vacuum tubes
  • Type: Objects
  • Contributor: The Henry Ford
  • Original Source: Digital Collections
  • Patent Date: 1908
  • Object Name: Vacuum Tube
  • Object ID: 00.4.2288
  • Inventor: Lee De Forest
  • Invention: Vacuum Tube
  • Image ID: THF157042
  • Field: Radio
  • Credit: From the Collections of The Henry Ford.

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