Summary

Double diode intended for low current rectification. Frequently used as detector, automatic gain control rectifier and noise limiter in communications receivers and top-end domestic radios.
The metal 6H6 was released in 1935 but this example appears to be of wartime production because it carries the US Navy initials U.S.N.
Manufactured by Radio Corporation of America, Harrison, New Jersey, USA.
6.3 V indirectly heated cathode.

Physical Description

Small metal bulb on 7 pin octal base.

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