Summary
General purpose high vacuum triode.
0.55 amp directly heated cathode.
These valves were manufactured for the German Armed Forces during World War 1. Very robust electrode structure.
Manufacturer: J Seddig, Würzburg, Germany
Physical Description
Tubular glass bulb on 4 pin base with metal shell and 3 male pins and a female pin,
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Wireless Institute of Australia, Mr Max Howden, 28 Apr 1967
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Manufacturer
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Inscriptions
Bulb: Seddig/R.J.W/Wurzburg/Nr.47332.
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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
121 mm (Length), 42 mm (Outside Diameter)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1987, 261 - 263 Pages
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