Mullard KB/D CV4004 M8137 ECC83 Box Plate Valve Tube NOS Boxed (V36)

Mullard KB/D CV4004 M8137 ECC83 Box Plate Valve Tube NOS Boxed (V36)
Mullard KB/D CV4004 M8137 ECC83 Box Plate Valve Tube NOS Boxed (V36)

Mullard KB/D CV4004 M8137 ECC83 Box Plate Valve Tube NOS Boxed (V36)
British Made12AX7 ECC83 Valve Tube.
Mullard KB/D CV4004 M8137 ECC83 Box Plate Valve Tube NOS Boxed (V36)