Summary
Two double grid tubes, made by Philips, Holland, introduced in 1923. It probably was used in as a detector or as an amplifier coperating on a low supply voltage.
Each valve is a triode with an extra grid to reduce the plate supply voltage. Filament voltage is 3.5 V, current is 0.5 amp.
These valves were only labelled D VI from 1923 to 1925. They were then labelled D6.
Physical Description
2 valves, one has British 4 pin base, the other has U.S. 4 pin base. Concentric horizontal elements with the plate is connected to metal base by screw connection. The valve with the Britsh 4 pin base is missing
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from L. Smith, 17 Feb 1972
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Manufacturer
Philips (N.V. Philips Gloeilampenfabrieken), Holland, Netherlands, 1923-1925
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Inscriptions
US 4 pin tube: Bulb: PHILIPS D VI Sold for Amateur Use Only 3.5V MADE IN HOLLAND NOM
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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
100 mm (Length), 55 mm (Outside Diameter)
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References
[Book] Stewart, Finlayson (Fin). 1995. Illustrated History of Philips Radio Valves to 1935., 1995, 5 Pages
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Keywords