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The complex history behind the electron or vacuum tube. ... In 1904, John Ambrose Fleming invented the first practical electron tube called the 'Fleming Valve'. Leming invents the vacuum tube diode.
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inventors.about.com/od/uvstartinventions/a/Vacuum_tube....
inventors.about.com/od/uvstartinventions/a/Vacuum_tube.htm
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The life of Professor Sir John Ambrose Fleming, inventor of the oscillation diode valve or vacuum tube. Some say he is the founder of electronics. ... Professor Sir John Ambrose Fleming is one of the great men of radio and electronics. His invention of ... It used the same basic vacuum tube technology as Fleming's diode,
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www.radio-electronics.com/info/radio_history/gtnames/fl...
www.radio-electronics.com/info/radio_history/gtnames/fleming.php
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John Ambrose Fleming was an electronics pioneer who invented a device that would help make radios, ... Recalling the Edison effect and now able to explain it (due to J.J. Thomson’s work on the electron) as the flow of electrons from the hot filament to the plate, Fleming developed the first electronic rectifier.
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www.magnet.fsu.edu/education/tutorials/pioneers/fleming...
www.magnet.fsu.edu/education/tutorials/pioneers/fleming.html
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A year later the pentode, which improved performance at low voltage, was developed and became the most commonly used valve. ... The successor to the vacuum tube, the transistor, invented by Walter Houser Brattain, John Bardeen, ... Later, John Ambrose Fleming of England, one of Edison's former assistants, became involved in...
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science.jrank.org/pages/7139/Vacuum-Tube.html
science.jrank.org/pages/7139/Vacuum-Tube.html
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Sir John Ambrose Fleming (November 29, 1849-April 18, 1945), often called a father of modern electronics, is best known for developing the first successful thermionic valve (also called a vacuum tube, a diode, or a Fleming valve) in 1904. His invention was the ancestor of all electronic tubes, a development that gave...
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www.icr.org/article/4984/
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At the same time, Sir John Ambrose Fleming was working on a glass–enclosed device containing an anode, a cathode and a vacuum. In 1904, he found his device could be used as a rectifier. He called it a valve; Others started to call it a tube. ... George Campbell developed the first electrical wave filter in 1917,
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www.hbci.com/~wenonah/history/edpart4.htm
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Vintage Tube Preamps ... Vintage Tube and Dyno Preamplifiers ... Built to take serious road punishment, from all new components, and with real tube power.
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www.speakeasyvintagemusic.com/
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An electrical engineer who invented the thermionic valve (the first Electron Tube), Sir John Ambrose Fleming, b. Nov. 29, 1849, d. Apr. 18, 1945, also contributed to the science of photometry (see Photometer), the measurement of the intensity of light. ... Fleming discovers that, in a vacuum tube, electrons will evaporate...
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www.acmi.net.au/AIC/FLEMING_BIO.html
www.acmi.net.au/AIC/FLEMING_BIO.html
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it is also known as the vacuum diode, kenotron, thermionic tube, and Fleming valve. ... John Ambrose Fleming, was born on 29th November 1849, the eldest son of seven children born to a Congregational minister, Rev. James Fleming. Although born in Lancaster his family moved to North London where he spent most of his early life.
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chem.ch.huji.ac.il/history/fleming.htm
chem.ch.huji.ac.il/history/fleming.htm
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