Summary
Alternative Name(s): Electronic Rectifying Vacuum Tube; Thermionic Electron Valve
A Tungar Bulb, manufactured by General Electric. U. S. A., introduced 1917 and used mainly during 1920s and still in use in the 1950s.
It was a gas rectifier used in battery chargers.
This valve is believed to have previously been used or collected by Francis West Chambers (1861-1928), who from 1909 held the position of electrical inspector for the Public Works Department of Victoria, with responsibility for supervising municipal power supply undertakings, and later held a similar role with the State Electricity Commission of Victoria from 1921. During the early 1900s he had collaborated with Henry Walter Jenvey in the first experimental wireless telegraphy experiments in Australia.
Physical Description
Globe. It has an Edison light globe screw base.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Mr E. W. Chambers, 02 Jul 1948
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Manufacturer
General Electric Corp (GEC), Schenectady, New York State, United States of America, 1917-1930
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Past Owner (Probable)
Mr Francis W. Chambers, Mount Eagle, Heidelberg, Greater Melbourne, Victoria, Australia, circa 1920-1928
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Inscriptions
On base: TUNGAR BULB CAT 1955628 On bulb: FT-F
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Brand Names
GE (Thermionic Electron Valves) , Tungar (Thermionic Electron Valves)
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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
140 mm (Length), 55 mm (Outside Diameter)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1977, 155-156 Pages
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Keywords