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How Vacuum Tubes Work

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Why The First Computers Were Made Out Of Light Bulbs

The Vacuum Tube and the Invention of Radio

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Building the Shuguang EL34-B Vacuum Tube - Part 2, Sealing the Bottle

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AT&T Archives: A Modern Aladdin's Lamp, about vacuum tubes,1940

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Triode Vacuum Tube: History & Physics

How A Tube Works

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Introducing the Vacuum Tube Manufacturing Series

Tube Lab #122 - A VERY Short History Of RCA