another convergence question

[old_tv_nut]

Originally Posted by DaveWM

I guess what I am getting at is did the factory start out with everything centered up (I would assume so), or how about the sets that jr, got his hands on and set evethhing at max CW.

Don't know what they did on particular sets. I do know that much later factory procedures would often involve first setting control slugs to a nominal mechanical position. So I would assume that any set you got is close to correct unless someone just went in and "tightened" all those "screws."

If you look back at my experience with replacing a broken blue H dynamic slug, you will see that I really had to try the full range (which I was afraid to do at first). But if you receive it unbroken, I'd assume it's close to start.

Edit: the nominal factory mechanical starting position might very well NOT be centered - so if the service literature doesn't tell you, don't assume.
2nd Edit - on the CTC-5, the pots are tapped at 25% rotation, and that (or very close) turned out to be the correct setting for the 21FBP22 substitute tube. It could depend on how close the guns are aimed for center convergence without any DC.