Valve
Production date
Circa 1920
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Object detail
Accession number
1978.1768
Description
AudioTron tubular vacuum ampifier. Clear glass, cylindrical, with two filaments attached to each end; complete with paper label. Mounted on two brass brackets with black ceramic(?) backing.
Marks
Genuine Audion, Mfg and Sold under / DeForest Pats. Nos. 841387 - 879532 / GENUINE / AUDIOTRON / [Trade Mark] / THE ORIGINAL TUBULAR / VACUUM AMPLIFIER / SEE NOTICE ATTACHED Printed
Media/Materials
Credit Line
Circa 1920. Valve, 1978.1768. The Museum of Transport and Technology (MOTAT).
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