Nearly finished with this RCA 21D7487

[Eric H]

This set is from 1957.

I took the chassis out for a preliminary examination, to remove it you also have to unbolt the tuner from the side of the cabinet and remove that along with the chassis, a cumbersome situation to say the least.

Knowing the RCA often put a mounting location on their color sets for the convergence board to sit while servicing the chassis I started looking for something similar on this, it only took a minute since the length of the wires limited the options.

Two screw holes on the side of the chassis with a slight convex bump to them, spaced exactly right to line up with the holes on the tuner bracket!

There were no screws present so perhaps they were removed or never supplied by RCA but they are threaded the same as the chassis screws so a couple screws and washers and I was in business.

Sams doesn't mention this but I'd bet it's in the RCA factory service literature?

This set also has the worst case of yoke rot I've seen, the cover on the back of the yoke holding the centering ring (only one) is completely crumbled to dust, even the yoke itself is distorted somewhat. I have a couple Triad replacement yokes but they don't come with the cover, they too are starting to distort some but are much better than the original so I'm going to swap one of them in.