Conar Tube Testers Adapter to Test CRT's?

[Crist Rigott]

Does anybody have any information on test adapters for the 221, 223, 224 Tube Testers number 3AD and 5AD. The adapters are supposed to make it that you can test a CRT with your tube tester.

I have a 221 and works well and I stumbled across Conar mentioning these adapters in the assembly manual.

Thanks.