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Audion Vacuum Tube - History Computer
https://history-computer.com/the-audion-vacuum-tube/
Audion Vacuum Tube: Historical Significance. Lee De Forest designed the Audion, and it was a vacuum tube device that could magnify a small electrical signal into a bigger one. The Audion was used in everything from radios to televisions to the earliest computers, and it enabled AT&T to establish up coast-to-coast phone service.
Lee De Forest: Father of Radio and Inventor of the Audion ...
https://blog.minicircuits.com/lee-de-forest-father-of-radio-and-inventor-of-the-audion/
De Forest invented the Audion in 1906, a device that changed the course of radio history in the 19 th century. The three-electrode vacuum tube functioned as a primitive transistor, allowing the amplification of radio signals to enable the broadcast of speech and music, a remarkable upgrade from Morse Code which was the dominant mode of wireless …
The Audion | Ham Radio History - W2PA.net
http://w2pa.net/HRH/the-audion/
The Audion Posted on 2212z - 11 January 2013 Vacuum tubes revolutionized radio, changing it more than any other single invention. When first introduced, however, even the scientists and engineers working with them did not fully understand how they worked. One of the first tubes to appear in QST was the Audion, by DeForest.
Audion | electronics | Britannica
https://www.britannica.com/technology/Audion
Audion, elementary form of radio tube developed in 1906 (patented 1907) by Lee De Forest of the United States. It was the first vacuum tube in which a control grid (in the form of a bent wire) was added between the anode plate and the cathode filament. The control grid enabled De Forest to modulate the current between the filament and the plate, producing the first successful …
Lee De Forest - MagLab
https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/pioneers/lee-de-forest
The invention of the Audion, a device capable of amplifying and modulating electromagnetic signals that could also function as an oscillator, was a crucial step in the early electronics industry. Until the invention of the transistor in 1948, the triode was featured in almost all electronic equipment.
INVENTOR DISCOVERED THE AUDION BY STEP-BY-STEP …
https://www.nytimes.com/1929/08/04/archives/inventor-discovered-the-audion-by-stepbystep-progress.html
L DeForest on invention of audion tube. DR. LEE DE FOREST asserts that he should be credited with doing more than "adding a third element to the …
Lee de Forest | American inventor | Britannica
https://www.britannica.com/biography/Lee-de-Forest
Lee de Forest, (born August 26, 1873, Council Bluffs, Iowa, U.S.—died June 30, 1961, Hollywood, California), American inventor of the Audion vacuum tube, which made possible live radio broadcasting and became the key component of all radio, telephone, radar, television, and computer systems before the invention of the transistor in 1947. Although de Forest was bitter …
Invention Audio – World Class Craftsmanship
http://inventionaudio.com/
Since 2009 Invention Audio designs and manufactures from its factory in wide range of solutions in the loudspeakers field. Vision: To be a “World reference” for acoustic systems’ users as strategic suppliers. Mission: To satisfy our customers’ needs by offering a high performance product in the required deadline. The accumulated experience as manufacturer of …
The Invention of Radio Technology - ThoughtCo
https://www.thoughtco.com/invention-of-radio-1992382
Lee de Forest was the inventor of space telegraphy, the triode amplifier, and the Audion, an amplifying vacuum tube. In the early 1900s, the development of radio was hampered by the lack of an efficient detector of electromagnetic radiation. It …
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