Learn how the Electron Tube was Developed in AT&T’s Bottle of Magic

The short film, Bottle of Magic, traces the development of the electron tube from the pioneering efforts of such scientists as Lee de Forest, Thomas Edison, and John Fleming, then demonstrates the role the tube has played in our society. A very informative and very retro film.

[via] AT&T Archives

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Garry Vander Voort

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