Summary
This was Raytheon's version of the RCA UY227, an indirectly heated triode developed for use as the detector in early AC mains radios but later used as a general purpose triode amplifier.
2.5 V indirectly heated cathode.
Manufactured by Raytheon Manufacturing Co., MA, USA.
Physical Description
Conical glass bulb on five pin UY style base.
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
Raytheon, Massachusetts, United States of America, circa 1930
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Inscriptions
Base: RAYTHEON/RAY227 Paper label on base: 227
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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
113 mm (Length), 44 mm (Outside Diameter)
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Keywords