Hi,

Interesting!

Perhaps, if I do determine that it's the tube itself (I didn't know they could go bad like that), I'll recycle it (which is something I need to do much more of, I'm afraid :-/ ).

I'll install the suspect A/B in a machine with a known good CRT and see what happens.

Any chance a damaged CRT could cause damage to other components? Logic says yes, but I want to be sure.

c