Zenith 19L25 Chassis Restoration - Advice?

[RitchieMars]

I think I'll be getting started on my Zenith L1846R sometime soon, so I've been sorting out the parts list I'll need to put together. I already have a good list of all the capacitors that are gonna have to go, but while I was at it, I went ahead and checked around on the resistors, too. Among other things...

Here's one thing that I decided to get out of the way early:



The original plastic cover over the yoke had deteriorated and created a mess of black shards that I'm still finding all over the place. Testing those resistors was getting pretty boring, so one night I decided to make a cover myself. It's just a bunch of thin card-stock type paper from a folder rolled up, cut, trimmed, and coated in duct and electrical tape. It holds my magnetic rings nicely, but I'll want to go back and seal this thing over with something heat-resistant. Plastic coat and engine paint should work.

A fellow told me that he remembered these sets having faulty screen resistors near the horizontal output tube. I found a bunch of resistors going from pin to pin that aren't listed in my schematics:



I found one resistor in the parts list that was called a "screen resistor." It was a 200 ohm resistor. It's way over by the tuner stuff, though. There's another near the horizontal output tube that looks similar but I haven't figured it out yet:



Both those read very little resistance.

Here's something else I haven't seen before:



Schematic calls it an "integrator." Looks just like a ceramic cap with three leads.

I also noticed that the getter on my horizontal output tube looks a little hazy...



And now, something I really need some advice on: My flyback!



Looks kinda grody. Doesn't help much that it was right in the path of those falling chunks of plastic from the yoke cover. This is the first time I've popped the cover off the top of the high-voltage cage. I only managed to clean up around the 1B3 before because I could reach it from the back and it was covered in smut. But, the flyback itself is surrounded in filth and seems to have a coat of wax peeling off, which you can see there in the picture. I've read that getting dirty and falling apart like that can lead to serious problems. I hope there's something I can do to clean it up and keep it in one piece!