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Palo Alto, California: Birthplace of the Vacuum Tube

The "audion" vacuum tube invented by electronics inventor Lee de Forest ("Father of Radio") in 1906 and his development of the 3-element triode vacuum tube the following year started the Golden Age of Vacuum Tubery. "Electronics Research Laboratory" marker at the site.

913 Emerson St., Palo Alto, CA
SE corner of Emerson and Channing.
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Historical marker.

Electronics Research Laboratory Site

On the corner of Emerson and Channing is a plaque that commemorates the original site of the Electronics Research Laboratory. This is where the vacuum tube was invented.

[SpicyV, 01/05/2014]

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