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Sir Ambrose J. Flemming

November 29, 1848, Lancaster, UK
April 18, 1945, Sidmouth, Devon, UK

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flemming_ambrose
Sir Ambrose Flemming

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Keywords
  diode, vacuum tube

 

Achievement

He is best remembered as the inventor of the two-electrode radio rectifier, which he called the thermionic valve; it is also known as the vacuum diode, kenotron, thermionic tube, and Fleming valve. It was patented in 1904.


Biography

University College, Cambridge University

English engineer who made numerous contributions to electronics, photometry, electric measurements, and wireless telegraphy. He is best remembered as the inventor of the two-electrode radio rectifier, which he called the thermionic valve; it is also known as the vacuum diode, kenotron, thermionic tube, and Fleming valve. It was patented in 1904. Powered by the amplifier grid invented in 1906 by Lee De Forest. Became a consultant to the Edison Electric Light Company. A popular teacher at University College. Knighted in 1929.


Chronology


Sources

www.igs.net/~chrisharr



Honors and awards

 

Go Backindex biographiesinformation about this section Updated on August 26, 2005 For suggestions  please mail the editors 

 

Footnotes & References

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