Summary
Gasfilled or "Soft" triode used as a detector. Manufacturer: Philips. Holland.
3.5 volt directly heated cathode.
Physical Description
Tubular bulb (with evacuation tip) with 4 pin European style base with metal shell.
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
Bulb: 'PHILIPS/D1/Sold for amateur use only Base: IX
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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
90 mm (Length), 30 mm (Outside Diameter)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1987, 418 Pages
[Book] Stewart, Finlayson (Fin). 1995. Illustrated History of Philips Radio Valves to 1935., 1995, 2, 26 Pages
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