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Description
De Forest Pioneers plaque, dated November 12, 1956, reads: Lee de Forest. This building stands on the site of the old Parker Building destroyed by fire in 1908. In his small laboratory on the top floor of that building Dr. Lee de Forest in October 1906 invented the grid 'audion' or three electrode vacuum tube on which our electronic era has been founded.
Type
image
Format
Black & White
Identifier
9CC15B19-D31D-4E71-AA36-272799049281 2003-59-192
Subject
De Forest Pioneers Plaques Audion Vacuum-tubes--History (LCSH) Electronics--History (LCSH) De Forest, Lee
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