OK, I know why there's no horizontal deflection. It grew out of working with multiple schematics from various models, direct replacement of capacitors in the chassis, value for value, and confusion regarding the Sams chassis photos of the bottom.
This chassis had a number of those weird caps in it...not waxies but almost like a cylindrical ceramic with coding stripes, in fact, they look like giant resistors only light in color. I can't replace these value for value because I can't read them (color blind). I depend on the sams photos to identify color coded stuff like this.
The problem with the horizontal yoke is that one side isn't connected. If you look closely at the picture, you can see the thick yoke wire attached to the highest lug of the bottom terminal strip. There was one of those funky caps attached to it running down into the terminal strip that has the large 0.47uf cap soldered in. The sams photo does not have the cap I cut out pictured.
You can see the yoke lead soldered to the terminal but there's nothing attached to it after I cut out the mystery cap
Here is a wider view. The striped lead running horizontally across the center goes to the yoke. The large diameter yellow modern cap is the 0.47uf I put in to replace another large old cap...but not the one I previously cut out. It is C199 in the schematic down at the end.
Here is the section of the schematic I'm using. The sams is depicted so differently.
So, I need to connect the yoke lead to something. Like I said, someone has been in here before so I'm not sure what I saw when I opened it was what rolled out of the RCA factory. The other side of the horizontal yoke is connected in the HV cage fine.