hey all, i got this 65 maggie roundie and its always had a dark picture as long as i had the set but i recently replaced the boost diode which was infact bad and it brightened it up very little but now im able to see the color lines on setup however its still very dark. all tubes are ok and sometimes i turn it on only to have the color bands that sometimes indicate a bad crystal but i changed that also and still is not right again tested tubes and subbed a few in the circuits that may effect this. any thoughts on the dark pic and the color bands, which go away after warmup. thanks
also the crt is fine and the bias has to be maxed clockwise to get any brightness worth watching.