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568 pages • first pub 2011 (view editions)
ISBN/UID: 9781461404170
Format: Paperback
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
Description
The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading ...
Community Reviews
Content Warnings
568 pages • first pub 2011 (view editions)
ISBN/UID: 9781461404170
Format: Paperback
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
Description
The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading ...
Community Reviews
Content Warnings