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How Vacuum Tube Triodes Work

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Between 1875 and 1883, inventor and businessman Thomas Alva Edison was working to improve the incandescent light bulb. It worked by connecting a voltage source across a pair of wires that supported a filament inside a vacuum. The voltage caused electrons to flow into one wire, through the filament, and out from the other wire. The filament's resistance created heat that made the filament glow white hot.

How Vacuum Tube Triodes Work How Vacuum Tube Triodes Work The Edison Effect Between 1875 and 1883, inventor and businessman Thomas Alva Edison was working to improve the incandescent light bulb. It worked by connecting a voltage source across a pair of wires that supported a filament inside a vacuum. The voltage caused electrons to flow into one wire, through the filament, and out from the other wire. The filament's resistance created heat that made the filament glow white hot. In the course of his experiments, Edison discovered an interesting phenomenon. When an electrode was inserted into th

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