M8137 12AX7 Mullard Valve Tube Boxed Anode NOS

M8137 12AX7 Mullard Valve Tube Boxed Anode NOS
M8137 12AX7 Mullard Valve Tube Boxed Anode NOS
M8137 12AX7 Mullard Valve Tube Boxed Anode NOS

M8137 12AX7 Mullard Valve Tube Boxed Anode NOS
M8137 12AX7 Mullard Valve Tube. M8137 and military CV4004 print. Single support large halo getter. Supplied in plain white box.
M8137 12AX7 Mullard Valve Tube Boxed Anode NOS