Rca 730tv1

[Tom Albrecht]

Hmmm... can't easily see a vertical linearity problem in your video. That's much easier to see with a test pattern.

Things to look for:

- drifted resistor values
- wrong capacitor values (double check your replacements, and don't use ceramic disks)
- weak tube
- bad potentiometer

Yoke or vertical output transformer issues usually have more severe symptoms, although I have seen a case of a leaky vertical output transformer (leakage between primary and secondary) which caused subtle problems in the vertical system.

[vts1134]

It is much easier to see with the test pattern below. No time tonight for poking around under the chassis but I thought I'd post a picture of progress so far.