I hate to cry Uncle, but I don't think I can take this set any farther without getting it aligned. I contacted the local collector club and asked if they know anyone in the Pacific Northwest who would try that if I delivered the chassis (or the entire TV), but got no response.
When I move the fine tuner, there is a very broad area in the middle of its travel where you bring in a fine B/W picture. You can only get color (true color, if it's a good day, or rolling bars, if it's not) at the opposing extremes of the tuner's range. This occurs on different channels, not only one.
On other sets, I have bypassed the tuner/IF and injected video and audio directly, but injection is not such a simple matter in a CTC-4, if I understood Pete's earlier remarks correctly. I guess I'll wheel this guy out of the shop and work on something else for a while.
Regards,
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html