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
Sylvania
Place Manufactured
U. S.
Identifying Numbers
Model number
6SN7WGT
Printed in silver on top of the glass envelope.
Other number
N1730
Written in green ink near the bottom of the glass envelope.
