My "new" 1954 CTC2B 21CT55 21" roundie

[walterbeers]

Does anyone know of extension cables for the set, that is a yoke connector (Octal), convergence connector (A 9 pin, looks like an octal), and a CRT connector (for the base of the tube). I'm sure I could rig up some high voltage wire for the anode though. Or was, or is there any type of test jigs that were made that would work with the set? Or, is it best to lay the set on it's side and remove the bottom metal plate? How has other restorers of CTC2s, 21CT55s, done it. There is a fellow on here that has a CRT test jig he want to sell, but I doubt it was made to work with a set this old. Even with all the adapter cables, I doubt if there is a way to connect up the convergence unit. I guess right now, I'm thinking of lying it on it's side, when I get a couple of strong guys over here to help with it.

[ChrisW6ATV]

Originally Posted by walterbeers

was, or is there any type of test jigs that were made that would work with the set?

My Sylvania CK3000 test jig (which also works with the RCA jig adapter cables) was only made to work with CTC-7 and later chassis, but I made a (yoke) adapter cable that works with the CTC-5, CTC-4, and CTC-2/CT-100. If I remember right, I also checked the schematics and it should work with a CTC-2B/21-CT-55 as well. There is one wire that gets either connected or disconnected among those different chassis.

The way the jig works on later chassis is, you plug in a "convergence load" to the chassis, that replaces the now-disconnected convergence control panel. However, on the CTC-5 and older models, only the convergence yoke is disconnected with the cable is unplugged from the chassis; the controls themselves are still attached, so no replacement "load" is needed when using the jig. (So, in this case, the CTC-3 chassis would still need to be connected to the CTC-2B chassis, but not the convergence yoke itself.)

If you do get that jig and you want the adapter information I have, let me know and I can probably copy it and post it here.