6.3 V indirectly heated cathode, manufactured by Electric Tubes Ltd., England, 1945-1949. Manufactured for A.C. Cossor Ltd. England. The 7C5 is a beam tetrode equivalent to the octal type 6V6GT.

At the end of World War II, Cossor joined with Sylvania Products Inc. in the U.S.A. to form a company called Electric Tubes Ltd. to manufacture valves using the Cossor brand. Cossor ceased valve manufacture in 1949, selling their interest in Electric Tubes Ltd. to E.M.I. Ltd.

Physical Description

Tubular glass bulb on loctal base.

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