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Description
Douglas Perham and Lee de Forest discussing an early audion vacuum tube at the Cavalcade of Electronics exhibit, Statler Hotel, Los Angeles. Two versions. In the second image, Perham is holding a framed portrait of Thomas Edison.
Type
image
Format
Black & White
Identifier
A4EC48EF-22A7-418F-921F-461735123166 2003-59-433
Subject
Audion Electronics (LCSH) Exhibitions De Forest, Lee Perham, Douglas M
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