Summary

(1) Electronic Valve - RCA, Triode, Type 6C4, 1942-1946
Triode designed for use at frequencies up to about 200 MHz.
6.3 volt indirectly heated cathode.

(2) Electronic Valve - RCA, Triode, Type 6C4, 1942-1946
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

(1) Electronic ValveSeven pin miniature valve with most of the bulb removed showing the internal structure of a triode. Mounted on a display block with a similar example (ST 022552). (2) Electronic Valve: miniature tubular bulb with seven pin base with exhaust tip on top.

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