Tube tester for a Predicta 21EAP4

[rickfray]

I have a Predicta Holiday I'm starting to restore with a 21EAP4 tube. I wanted to test the tube to see if it was any good before attempting an electronic overhaul. I got a B&K 465 CRT tester off ebay but didn't realize until I got it that it didn't have any adapters except the color one with the molex connector. The schematic with the B&K shows an "A" adapter that I suppose corresponds to the tube setup chart for 21EAP4 which says use adpater "A". The problem is, the schematic just shows a standard round 8 pin socket symbol with 6 of the pins wired but the tube connector is an oddball 5 pin with 5 wires (2 up, 1 in the middle, 2 down-slightly wider than the top 2) so I can't confirm that is actually the right adapter. I've seen some other 465's on ebay with inconclusive pictures of adapters to assure me the they will work with an EAP4.

Has anyone actually tested a 21EAP4 with a B&K 465 and can confirm what adpater I need, or how to build one? I do have the color adapter that connects to the universal B&K plug/cable that has the molex connector on the end, so I'm guessing if I can confirm the correct tube pinout to use, I could get a molex and make at least a jumper cable adapter.

Also I'd appreciate a copy of a tube manual page for the 21EAP4 if anyone can scan it. I have a few tube manuals but not for the 21EAP4. Many thanks as I start on my Holiday fixer upper.

Rick