Summary
RF Tetrode, known at the time as a screen-grid valve, used as a class A R. F. amplifier. Manufacturer: Mullard Radio Valve Co. Ltd. England.
4 volt directly heated cathode.
Physical Description
Conical bulb (with top cap) with 4 pin European style base.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from I. E. Morton, 10 Mar 1972
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Manufacturer
The Mullard Radio Valve Co. Ltd, England, Great Britain, circa 1928
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Inscriptions
Bulb: (Mullard logo) Paper label on base: PM14
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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
125 mm (Length), 45 mm (Outside Diameter)
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Keywords