[Adam]

So I picked up a 25XP22A/25AP22A which tests really good on all 3 guns (1st pic). A replacement tube from 1980 out of a soggy CTC17 that Dwight had. It's starting to cataract around the edges, but it's such a good tube I'm thinking that I'm going to attempt to remove the saftey glass clean out the glue and tape it back on. This tube is going in the 70 Zenith with the hybrid chassis, a set which I hope to use as a daily watcher once I get it working.

I tested the CRT in the french provincial set, and as I suspected it's bad. Only the blue gun tested ok at around 300/1000. At 6V the red and green guns didn't register at all. At 8V the red gun got up to about 100/1000 and the green gun about 50/1000. After leaving it at 8V for a few minutes, and then dropping it back to 6, the red and green guns dropped back down to 0. It is a Zenith tube, which is not as I suspected because the cataract takes the form of black dots rather than the green halo - looking more like an RCA tube than a Zenith. But as you can see in the next pic the label says it is a Zenith tube.