Mullard KB/D

CV4004 M8137 ECC83 12AX7 Valve Tube

Old Logo, Dual Printed

Grey Box Plates & Halo Getter

Fully Tested on AVO VCM 163

Ia 1.15/1.35 - Gm 1.3/1.4

100% Book Spec = Ia 1.2 - Gm 1.6

Used, Clean, Supplied in Mullard Box