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 | Lee De Forest |  | ||
|
| Council
Bluffs,
Iowa 26.August.1873-
Hollywood, California 30.June.1961 |
Triode (audion) |
| |
In
1906 De Forest invented the vacuum tube "today
called TRIODE, had the idea to add a third electrode to the Fleming This
third electrode allowed the birth of the first amplifier. diode,
the grid. |  | |||
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