12AX7AECC83I63

Mullard

Branded RCA

Brand Extended

Radio Corporation of America

Code On Tube

I63 B5K4

Country

Great Britain

Factory Code

B - Mullard, Blackburn

Getter

O-Getter Halo

Getter Support

One

Glass Color

Clear Glass

Mica

Double

Permanentid

0ifjnt47

Pin Color

Gold Pins

Plate Color

Matte Gray