In which decade were the first successful diode and triode vacuum tubes invented?
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1900s
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Iŋ 1904 John Ambrose was first successful invented vacuum tubes .
in 1906 Lee de forest was first successful invented audian later called a triode.
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Iŋ 1904 John Ambrose was first successful invented vacuum tubes .
in 1906 Lee de forest was first successful invented audian later called a triode.
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#1990s
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☆ In 1990s, the first successful diode and triode vacuum tubes were invented.
☆ John Ambrose Fleming invented the "Fleming valve or oscillation valve" (the first practical vaccum tube), a diode rectifier in 1904.
☆ Lee de Forest invented the triode (the Audion) in 1906.
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☆ In 1990s, the first successful diode and triode vacuum tubes were invented.
☆ John Ambrose Fleming invented the "Fleming valve or oscillation valve" (the first practical vaccum tube), a diode rectifier in 1904.
☆ Lee de Forest invented the triode (the Audion) in 1906.
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