Mullard KB/D, Made in Great Britain

M8136 CV4003 12AU7 ECC82 Valve Tube

Box Plates, Halo Getter, Dual Printed

631 R7E2 Code in the Glass

Fully Tested on AVO VCM 163..

Ia 10.2/10.3 - Gm 2.3/2.3

100% Book Spec = Ia 10.5 - Gm 2.2

New Old Stock, Supplied in White Box