color stripes on screen (slyvania roundy)

[Username1]

Color is way off frequency, the more bars you can see the more off frequency it is......

If you don't have a tube chart (layout) look on top, or bottom of chassis for a color crystal, its aluminum, about 3/8 thick, and maybe 1 1/8" long, curved on the sides, about 1" tall, flat on top, and most likely has 3.58mhz or just 3.589 stamped in the top. The set will have only 1. Your color circuit is right near this item. This is your color oscillator crystal.

Your color osc. tube will be near it, the cap former Captain Picard is talking about should be near this item. 6GH8A's have short lives, you should keep a few NOS spares, you can switch out from that set to another to try, or with another in that set if you don't have another, you might see a difference if its weak or bad.

For this problem, look to color oscillator, or color afc, circuit, there is a rectangle 3 wire afc diode in that part of the color circuit. Its usually black plastic - almost same size as the color crystal.

PS both the crystal, and the 3 wire diode often are not the problem.

Actually now that I think about it more.... I think the 3 wire diode is the Horiz afc, and not color afc, so forget I said that... getting old....

Also, those caps with the thousands of volts are high tolerance caps, and high voltage rating because it is a critical value not to drift in value, don't worry there is not that much voltage there, its to keep the value stable.