4 X Genuine Mullard EF37A NOS VALVE/TUBE excellent working order Hifi Industrial
4 X Genuine British made Mullard EF37A NOS VALVE/TUBE These appear to be in very good condition with some minor paint loss on a couple.
4 X Genuine British made Mullard EF37A NOS VALVE/TUBE These appear to be in very good condition with some minor paint loss on a couple.