Hi finished my Motorola vt105 set. Tuner was bad so put video and audio direct in the set. Looks good and plays loud but bad retrace lines is there a cure for this please? And where in circuit is the cure?

http://www.earlytelevision.org/vertical_blanking.html

Think I will try that circuit that's on the early television forum. I have the same problem with my old late 40s and early 50s sets.