6SL7GT ECC35 Brimar Valve Tube, Black Anodes, 1940’s NOS (P62)

Acid etched 6SL7GT

Orange Brimar logo

Oblong bar getter

Black tubular anodes

Black base

Large round top Mica support

Made in England

1940’s production

Original Brimar boxed

Test results:

V1 – A1:  1.9ma 1.1gm   A2:  1.95ma 1.15gm

NOS