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Fleming Valve and DeForest Grid Explain Vacuum Tube History
The article reviews the three electrode vacuum tube and its grid. It explains how Fleming’s valve rectified high frequency currents and how DeForest added a grid to control electron flow. The text notes grid polarity limits plate current and describes circuit diagrams Figure VII and early detector use in radio.
MENTIONED IN THIS ARTICLE
Fleming Valve
Dre
Lee’ ‘DeForest
Cirenit
London
England
Fleming
Lée’ ‘DeForest
DeForest