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Image / Dougle grid, plate, filament round bulb audion

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Title
Dougle grid, plate, filament round bulb audion
Contributing Institution
History San Jose Research Library
Collection
History San Jose Online Catalog
Rights Information
Please contact the contributing institution for more information regarding the copyright status of this object.
Description
From Gerald F. J. Tyne, with handwritten note: #6150 double grid, double plate, double filament round bulb Audion
Type
image
Format
Black & White
Identifier
9A52A12B-CB21-4D5A-9858-508166412320
2003-59-327
Subject
Audion
Vacuum-tubes (LCSH)
De Forest, Lee

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