[Ron Ramirez]

Superglue, no. Two-part clear epoxy, maybe. (EDIT: I should have been paying closer attention...or I shouldn't post after driving all afternoon and part of the evening. You are referring to the center key, correct? Forget about it. Replace the socket.)

Your 6J8 socket is sort of tan in color, compared to the dark brown of your other sockets, yes? I ran into the same problem with two of the tube sockets in my 41-616. That tannish color material Philco used to make some of their sockets during 1940-41 is very prone to breakage. The brown wafer sockets are much, much better than those.