Starting a Restoration on a 1951 RCA 7T111B

[Aperna1985]

I recently picked up an old RCA 7T111B with the KCS47GF-2 chassis from the estate of a RCA electrical engineer. I also got an RCA Gizmo from them. Apparently this set has been sitting for over 50 years and the previous owner either helped RCA invent their line of televisions or invented the color sets I'm not sure. But his son is in his 60s. Anyway I brought it home and I brought it up slowly on the variac and was surprised that I was able to get audio out of it and high voltage. I tried to get a picture but the controls are so dirty that I have to keep turning them side to side to see anything on the screen. I tested all the tubes and have a lot of tubes on order, the CRT tests very strong. So the next move is to pull the chassis and start replacing capacitors. I'm not sure how to get this chassis out. Almost everything is straightforward the only thing I don't understand is how to disconnect the high voltage it looks like the wire is built into the tube then comes back to the high voltage cage where it looks like there's some kind of a plug that's sitting in rubber have any of you come across this before?