B&K 467 Where to get sockets for vintage tvs?

[JCFitz]

I have been lucky getting back into messing with older tvs.I have electronically restored a 1957 Hotpoint tv and got lucky the tube was really good with low hours and obviously my Zenith roundie has a good tube with low hours.

But what do I do with one that I intend to buy and want to test the tube before I get it? I have access to a B&K 467 at the shop I work at. The oldest sets I came across way back when I messed with these were the delta tube rectangulars that used no.3 .Even that has sprouted legs and walked away over the years since I used this instrument.Probably another tech borrowed it and it never found it's way back to the shop.Is it even compatible with roundies and older B/W tubes?IE is there a setup chart avalable for these older tubes? Will a universal adaptor work if I can find one?