Summary
De Forest Audion DV3 electronic valve used for detection and amplification in dry battery powered radio receivers, made by De Forest In America, circa 1925.
The valve has a directly heated cathode with a filament voltage of 3V
Physical Description
4 pin Isolantite (white ceramic) UV style base
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Albury Ronald Cavill, 01 Aug 1971
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Manufacturer
De Forest Radio Company, Jersey City, New Jersey, United States of America, 1925
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Inscriptions
Base stamped "10165". Marked "sold only for amateur and experimental use". Sticker on bulb: De Forest 3V dry cell Audion On base: Isolantite bases mfg. for De Forest excl.
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
90 mm (Length), 35 mm (Outside Diameter)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1977, 301 - 302 Pages
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Keywords
