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Vacuum Tube Generation

Invention: Vacuum Tube

Date: Made in 1904 and was done in 1960s

Description: Vacuum tube can convert an alternating current signal into a direct signal.

Bibliography: http://www.vacuumtubes.net/How_Vacuum_Tubes_Work.htm
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Inventor: Ambrose Fleming and Lee de Forest


Birth Date - Death Date: Ambrose: 1849-1945 Lee: 1873-1961
Birth Place: Ambrose: Lancaster Lee: Alabama


Brief biography: Ambrose Fleming was born in Lancaster in 1849. In 1904, he created a vacuum tube. Lee De Forest invented the Audion, a vacuum tube that relatively weak electrical signals and amplifies them

Bibliography:
http://www.radio-electronics.com/info/radio_history/gtnames/ambrose-fleming-facts-quotes.php
http://www.pbs.org/transistor/album1/addlbios/deforest.html