Admiral 20X1 frequency.

[Doug66]

Thanks for the advice. I've been working on the horizontal oscillator section and can now get a somewhat stable horizontal pic. However I'm back to my original problem. Vertical frequency too high. Already replaced vertical oscillator transformer and no improvement.

[Alex KL-1]

About the source, is good to test with another TV your source, for checking that Electronic_M said, to be 100% sure.

About the TV, if both V and H are twitchy/touchy, it must to be a common circuit cause, ie. from sync separator back (including video, IF, and RF). Bad sync separator, or bad aligment of the IF section (making bad video freq. response) are 2 of various possible causes.