Summary
Half wave rectifier; usually used in a pair as a full wave rectifier in audio amplifiers and radios. When branded Cunningham, this valve is called a CX381.
7.5 V directly heated cathode.
Physical Description
Conical glass bulb with 4 pin UX base
More Information
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Collection Names
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Collecting Areas
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Manufacturer
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Inscriptions
Bulb: RCA logo Base: Radiotron/UX281
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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
148 mm (Length), 58 mm (Outside Diameter)
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References
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1987, 323, 325 Pages
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Keywords
