Summary
Triode designed for use at frequencies up to about 200 MHz. Manufacturer: Radio Corporation of America, Harrison, NJ, USA. Millions of this type made in World War Two (1939 - 1945). Used mainly in airborne radar, in particular for identification purposes (friend or foe determination (IFF).
6.3 volt indirectly heated cathode.
Physical Description
Miniature tubular bulb with seven pin base with exhaust tip on top.
More Information
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Collecting Areas
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Manufacturer
Radio Corporation of America (RCA), Harrison, New Jersey, United States of America, 1942-1956
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Inscriptions
Bulb: (erased)/6C4(faint)/RCA
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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
52 mm (Height), 18 mm (Outside Diameter)