21AXP22A Replacement in CTC-5

[Mal Fuller]

Originally Posted by mstaton

This has the conversion done to it years ago. Has a "CYP" glass tube and newer style yoke but missing the hairpins. Hope this helps

That's the CTC-5 style yoke with a newer style cover. You can still see the original metal yoke securing extensions on each side of the yoke that once interfaced with the discarded plastic cone.
You won't find any yoke connections inside the cover's holes.