Summary
The first indirectly heated tetrode (screen grid) valve to be made by RCA. Replaced by the faster warm-up type UY224A at the end of 1930.
2.5 V indirectly heated cathode.
Manufactured by Radio Corporation of America, Harrison, New Jersey, U.S.A.
Physical Description
Conical glass bulb on five pin UY style base with top cap missing..
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Unknown Acquisition Method from Unknown Source, 1981
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Manufacturer
Radio Corporation of America (RCA), Harrison, New Jersey, United States of America, 1929-1930
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Inscriptions
Base: (RCA logo)/RADIOTRON/UY224 Paper label on base: UY224 Bulb: (RCA logo)
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Brand Names
RCA (Thermionic Electron Valves) , Radiotron (Thermionic Electron Valves)
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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
122 mm (Length), 44 mm (Outside Diameter)
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Keywords