Summary
General purpose triode. The VT1 was developed for the US Signal Corps during Wold War I by Western Electric to meet their requirements of a rugged and reliable valve. Civilian version was the 203A. Manufacturer: Western Electric, USA
Dull emitter consisting of oxide coated Platinum alloy filament - 2.2 Volts at 1 amp
2.5 V directly heated cathode.
Physical Description
Cylindrical bulb (with evacuation tip) with 4 pin UV style metal shell base.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Australian Wireless Valve Co (AWV Co), 23 Feb 1972
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Manufacturer
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Inscriptions
Label on bulb: VT1/First Oxide Platinum filament/1917 hard valve Base: Signal Corps/VT1/Western Electric Co Inc/Pat in USA 1-15-07/Two patents 2-18-08 4-27-15/12-19-16
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Brand Names
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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
103 mm (Length), 35 mm (Outside Diameter)
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Dimensions
132 mm (Length)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1987, 99-101 Pages
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Keywords