Summary
Sharp cut-off pentode for battery operated equipment requiring low battery drain. Equivalent to European type DF33.
1.4 V 50 mA directly heated cathode.
Manufactured by Radio Corporation of America, U.S.A.
Physical Description
Tubular glass bulb with octal base (with seven pins present) and top cap. Mounted on display block with ST HT 28347.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Amalgamated Wireless (Australasia) Ltd, 05 Feb 1941
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Manufacturer
Radio Corporation of America, United States of America, 1938-1948
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Inscriptions
Base: (RCA logo)/Radiotron/MADE IN U. S. A./LICENSED/AS STATED/ON CARTON Bulb: 1N5/GT Display block: (text)
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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
81 mm (Length), 32 mm (Outside Diameter)
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