6SN7GT

Philips

Branded Mullard

Base

Black

Bottle Height

Half

Bottle Shape

Skinny Bottle

Code On Tube

r91 L7C

Country

Holland

Factory Code

L - M.B.L.E. Mazda, Bruxelles

Glass Color

Grey

Mica

Double

Permanentid

l7zbsfn2

Pin Color

Silver Pins

Plate Color

Matte Gray

Tip Shape

Round Tip

Year

1957