color stripes on screen (slyvania roundy)

[reeferman]

Have you checked for bad solder joints?
Crystals seldom go bad.
Only recap as last resort.
The tool has a 1/16" hexagonal on the end and made of plastic. Commonly referred to as a diddle stick. Should be available at Radio Shack.

Assuming you have a CTC-15 clone the attached drawings should apply. In drawing 1 you are concerned with tube V703 and reactance coil L702 (which has only 1 ferrite core (slug) to adjust. Drawing 2 is the schematic. Short pin 2 of V703 to chassis ground. Don't worry about the "B" in the V703B. Adjust coil L702 for the minimum number of color stripes (bars) and at the same time have the color stripes stop moving (floating). Go ahead and play with it. You'll see that moving the coil one way will increase the number of color stripes on the screen and the other way decrease the number of stripes. Go for the minimum number.

Before starting I recommend setting the color killer control. Go to an unused channel and adjust the control all the way to the end that gives you color snow. That way your set might not try to cut back or even kill the color signal.
After adjusting the reactance coil L702, adjust the color killer control by turning to an unused channel, adjust the control to where you have color snow, then back off until snow disappears. A simple adjustment people overlook.