[drh4683]

If you check your tubes and make sure they are all 100% and still no sucess, your IF has probably drifted. Since you were getting color on cable, I know that your color circuits are fine. There is a sound rejection pot on the ctc31, pictured is the blue color pot. adjust it and your color could pop in. The contacts get dirty on those. Also, after youve adjusted that, the 41.25 mhz sound trap is in seires with the pot, its to surpress the sound carrier, and when those go out of alignment, your color will be very weak and faint. Ive adjusted them before and you would be surprized how much these old color sets drift off over the years. You can simply "eyeball" these coils. The first coil has the more effect than the second. This first 41.25 to adjust is the one just in front of the 6KT6 pictured, the second is the taller one just to the left of it. Adjust for minimum beat while watching a color program, and while you are doing that, you will see the color intensity increase. Watchout, as when you adjust the first coil, you could go to far and have color ghosts.