1950's GEC CV575 / U52 / 5U4G
GEC made some of the finest tubes on the planet. This 1950's GEC CV575 / U52 / 5U4G is no exception. With a D getter, black plates and brown base, these are some of the most desirable 5U4 variants out there.
All of our stock is packed in military marked cardboard boxes and appears exactly like the photograph.
These are exactly the same tubes as Genalex Gold Lion U52.