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Lee
De Forest
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Council
Bluffs,
Iowa 26.August.1873-
Hollywood, California 30.June.1961 |
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Brief
biographical history of Lee De Forest
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1873 |
Born in August 26, Council Bluffs, Iowa father
Henry Swift DE FOREST mother Anna Margaret ROBBINS |
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1878 |
Born his brother Charles Mills DE FOREST |
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1898 |
The father dies Henry Swift DE FOREST |
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1896-1899 |
 He graduated with a thesis "The
Reflection of Hertzian Waves at the End of Parallel Wires"
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1900 |
Work at Western Electric
Co.. , Chicago, Ill. |
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1901 |
Found The
American De Forest Wireless Telegraph Co..United Wireless Telegraph Co).
(Later |
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1905 |
He developed the prototype of 'audion amplifier |
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1906 |
Develop the Triode (vacuum tube) |
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They married
on February 17 with Lucille Sheardown in New York (hence divorced in
1907) |
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1908 |
They married Nora Blatch
(hence divorced in 1912)-which union born Harriet Blatch DE FOREST
(1909?) |
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1910 |
It transmits the voice of Enrico Caruso radio by
Metropolitan Opera House, New York, NY |
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1912 |
It marries Mary Mayo (which they divorced in 1930)
and have children:
Eleanor DE FOREST, Marilyn DE
FOREST  |
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1913 |
Presents the prototype oscillator with audion tube
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1916 |
Opens a radio station |
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1919 |
Patented
phonofilm device for making talking pictures |
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ca. 1920 |
Public How to Set Up an Amateur Radio Receiving
Station (New York, NY: De
Forest Radio Telephone and
Telegraph Co. 32 pp.) |
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ca. 1922 |
Post "Wireless in the Home" (New York, NY: De
Forest Radio Telephone and Telegraph Co. 32 pp.) |
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1923 |
Demonstration of the movie Rivoli Theater, New
York, NY De Forest Co Phonofilm. |
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1930 |
It marries Marie
Mosquini
( Los Angeles, California, USA 3 December
1899 – Los Angeles, California, USA 21 February1983)
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1934 |
Opens Lee De Forest, Inc.., Los Angeles, Calif. |
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1942 |
Publish "Television, Today and Tomorrow" (New
York, NY: Dial Press. 361 pp.) |
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1947 |
Receives recognition of Edison Medal of the
American Institute of Electrical Engineers |
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1950 |
Publish "Father of Radio"
(Chicago, Ill..: Wilcox and Fallett. 502 pp.) |
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1951 |
June 30 - Appointment as Vice
President of the National Association for Better Radio and Television
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1961 |
He died in Hollywood,
Calif. |
