New here and to Vintage TV.

[dieseljeep]

One of the things I would do is replace that 6EL4 with a 6BK4. Also check or replace the dropping resistor for the 1V2 filament. You're making good progress on that set.

[Daave]

I did notice on the 6el4 thats in there, it never lights up, or is so dim I can't see it thru the dark glass even with the room black. As I understand this one only lights up when it needs to?

I don't have full vertical either, Im missing the bottom inch or so, the vertical output tube gets very hot I can't even touch it during operation.

[dieseljeep]

Originally Posted by Daave

I did notice on the 6el4 thats in there, it never lights up, or is so dim I can't see it thru the dark glass even with the room black. As I understand this one only lights up when it needs to?

I don't have full vertical either, Im missing the bottom inch or so, the vertical output tube gets very hot I can't even touch it during operation.

A new 6BK4 is perfectly clear. If that tube is that dark, it's pretty well spent. New 6BK4's are very reasonable at ESRC in Florida. They show a 6EL4 for $40.00 USD. Why, I don't know. ???.... Is the vertical output a 6HE5? It's a fairly hot running tube. Probably a lot of faults in that set that have to be sorted out, one at a time.

[DaveWM]

yea you should see the 6Bk4 glow all the time, just brighter when there is less beam current thru the CRT (dark scenes), should be clearly visable glow near the base of the tube. The 6EL4 from what I understand is just more X-ray shielded, leaded glass perhaps. I routinely replace some of the large ceramic tube caps in the vert circuit of zenith, .1 1kv I think. My cap tester only goes to 450v so I cant really test them well. They are prob ok, but I change them anyway. like the other poster said, often there are a lot of minor problems, just need to work them one at a time.

Make sure your pic is centered, do this in the setup mode to see where the horz line is. then you can adj the V heigh and V lin. get that and the purity all squared away before touching the convergence.