[Electronic M]

It would probably be much more productive to send an actual image rather than a colored raster. You can check if your color, focus, sweep linearity, etc are good. That blue field you sent it will hide many issues that might be good to know about now.

Also (if you haven't already done this) before you go running it for more than 10 min stints it would be wise to go through the sam's horizontal setup procedure (especially checking and minimizing horizontal output cathode current)...These sets can cook their own flybacks really easy if everything ain't just right,