Sylvania 580 chassis (CTC-15 clone): Insufficient width.

[nasadowsk]

Ok, so I'm going over my Sylvania 580. It's got the following issues:

* The high voltage is a touch weak - I can get 22.5kv, not 23.5kv spec'd, without any major drive lines on the screen. If I go for the 23.5kv, I get a drive line on the screen (or at least I'm getting vertical lines that look like drive lines). I'm about 1,000 volts shy, here.

* The width: It, in a word, sucks. I'm about 2 inches too narrow, really more like 3 or so. I've got about an inch edge on either side of the screen.

I haven't touched the horizontal efficiency coil. Current is about 160ma, which just seems too low.

Am I looking at an issue of insufficient drive here, or should I just go in and turn up the current via the horizontal efficiency coil? I'd rather not stress the flyback more than it is, but from what I've typically heard, it's a struggle on these sets to get it below 220ma without major picture/HV issues.

Any ideas guys?

Thanks!