6SN7GT Brimar Valve Tube, Black Anodes, 1940’s NOS (P79)

Orange Brimar logo

Acid etched 6SN7GT

Black ribbed anodes

Black base

Oblong bar getter

Made in England

Test results:

V1 – A1:  8.4ma 2.4gm   A2:  8.3ma 2.3gm

NOS