I went ahead and replaced the rest of the small electrolytics. It makes a decent picture now. This is from a test pattern DVD:
This TV is extremely sensitive to signal strength, making me wonder if there's something funky with the AGC. The gain control is very reactive, and I may need to adjust the gain when switching from one DVD to another, not to mention switching from one source to another.
The warp on the right margin is worst with a white-background scene like this. It was not apparent at all, and the width was more than adequate, when I played a DVD of Gone With the Wind on the same player.
The vertical hold is not as stable as I expected. Not awful, but not great, either.
It also has a noticeable hum, even with volume turned all the way down. This is not your typical intercarrier buzz, although I cautiously adjusted the ratio detector secondary (A9) as directed in the manual.
The TV is watchable in this state. Perhaps some of these nits are just in the nature of the beast. I don't want to flog it trying to squeeze BMW performance from a Chevette, but I want to improve the vertical hold, at least, before quitting.
Phil Nelson