The hair dryer did the trick! You guys rock
Here it is stuck.
About a minute under the hair dryer softened up the waxy inner surface of the yoke. It's not really all that hot - I'm holding it in my bare hand!
Now I can see that he rubber mounts have disintegrated. This is proving to be an interesting set to restore. The more I poke around, the more things I find to fix. I've never encountered so many bad resistors and caps before.
The set will be much easier (and safer) to work on now
The CRT only tests fair, but that's OK - I have a spare.
Thanks again for the tips.
Bob