The Age of Vacuum Tubes: The Conquest of Analog Communications [Historical]

  title={The Age of Vacuum Tubes: The Conquest of Analog Communications [Historical]},
  author={Massimo Guarnieri},
  journal={IEEE Industrial Electronics Magazine},
  • M. Guarnieri
  • Published 15 June 2012
  • Physics
  • IEEE Industrial Electronics Magazine
After they first appeared on the scene in the early 1900s [1], a series of improvements on vacuum tubes occurred in the second decade of the 20th century, leading them to maturity. A major advancement was introduced by an American chemist and physicist Irving Langmuir (18811957) of the GE Research Laboratory in 1912, who used his new mercury vapor diffusion pump to obtain high vacuum tubes. These proved much more durable, reliable, and capable of linear amplification at high frequencies, thus… 

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