Metal type 6N7 and glass-octal types 6N7G and 6N7GT used in output stage of ac-operated receivers as a class B power amplifier or with both units in parallel as a class A amplifier to drive a 6N7 (-G,-GT) as class B amplifier.
Common cathode for both units.
With exception of the base, the 6A6 is identical with type 6N7G.
