20Y1 Admiral horizontal frequency problem

[bandersen]

Yes, those peaks should be equal heights.
You can download the Riders Service info here courtesy of the ETF.
The horizontal oscillator and AFC operation are described on page 14. Horizontal oscillator adjustment is described on pages 20-21 including a little picture of what that waveform should look like.

You might gain some insight from this video where I troubleshoot the same oscillator circuit running too high: http://www.youtube.com/watch?v=YXWX1YasFk4

[6GH8cowboy]

After comming to the point that its not a component in the H osc section I turned my attentions to the outout stage. As it turnes out the .002 cap (Riders c419) from the cathode of the HOT to the signal line has more to do with signal conditioning than I thought. My replacement was OPEN! I now have raster and the frequency is only slightly off. I have alighned acording to the write-up and I suspect I may have to tweak a component value in the osc, being the original values were flat values for the caps and replacement industry standard values are slightly higher or lower as provided. Has anyone found this to be the case when working with time base or osc circuits with the older flat values? H-Range c412 adjustment trimmer hasn't enough range.

Also I do not have a sweep generator (last used one 35 years ago) Is there a basic bare bones suggestion for an IF align or should I put in AV jacks being there ios no over the air stations anyway, or put up with the buzz when using a converter?