Tung Sol 6SC7GTY - round plates - black glass - brown base - Joint Army Navy - tube in mint condition popular

Tung Sol JAN CTL 6SC7GTY tube
new old stock - time travel condition
original box
low loss brown base
round plates
black glass
packed December 1957
tested on a Hickok KS 15874-L2 Cardmatic tube tester.

Early versions of the Fender Princeton (5C2) and Fender Deluxe (Tweed 5C3) guitar amplifiers used the 6SC7. popular