1981 19" RCA XL-100 CTC108C no brightness after CRT cleaning

[joe111671]

I found another RCA at an estate sale, this one is a 1984 with a CTC118 chassis. I powered it up, there was no signal to it but the snow appeared crisp with no dominant color, so I grabbed it. It was interesting to find this shortly after the 1981, because I never see 19" RCAs from the 80's and I've been going to estate sales for years.

It has cigarette burns on top, plus it stinks like cigarette residue, so it's not a keeper. But it makes a great picture, the crt tests great, and looking at the two RCAs side by side, I can see that this crt has better focus.

I want to take the tube out of the cigarette set and put it in the keeper, since that one is only good because of the zap from the rejuvenator, and my understanding is that restoring a crt may only be a temporary fix.

The yokes have different plugs which I can work out. The SAMS for the CTC108C shows yoke resistance to be 10 ohms on the vertical and 1.4 on the horiz. I measured it and that's what I got.

I don't have a schematic for the CTC118. The vertical on that does measure 10 ohms, but the horiz has a cap in series with it so I can't measure it easily. I don't know the significance of that cap so I hesitate to do the swap & I don't want to disturb the convergence tape by trying to swap yokes.
I really want to try this but don't want to ruin a good chassis or yoke.

Any advice is appreciated!

If it helps:
CTC108C=19VLNP22
CTC118=A48ABE10X