6SN7GT Brimar Valve Tube, Black Anodes, Orange Print NOS (P87)

Black ribbed anodes

Acid etched 6SN7GT

Black base

Orange Brimar logo

Oblong bar getter

Made in England

1940’s

Test results:

A1:  9ma 2.55gm   A2:  9.5ma 2.65gm

Almost perfectly matched

NOS