6H6

Octal 8-pin twin signal diode utilizing a metal shell construction, engineered with two independent cathodes to operate as a full-wave detector, automatic volume control (AVC) rectifier, or low-current limiter. Equivalents: 6H6GT, 6H6G, VT-74, CV1957. Real-Life Examples: Hallicrafters S-40 shortwave receivers, vintage automotive radios, pre-war console AM radio chassis.