This is a medium-mu twin triode in a glass envelope with an eight-pin octal base. This is a spare tube for Bus Drive Flip-flop Storage Rack serial # 11.
Date
ca. 1957
Manufacturer
RCA
Place Manufactured
U.S.
Identifying Numbers
Model number
6SN7GT
Printed in silver ink around the glass envelope and on the phenolic base.
Other number
COR 34 V4-1
Handwritten vertically in silver ink on the glass envelope.
