I replaced the selenium diode pack with two 1N4005 silicon diodes. I also used a different convergence process than the one mentioned in the Sams Photofacts. The Sams only uses 12 of the 13 dials on the convergence board. Here is the Sams:
Note that the Sams does not make use of the “Blue Shaping (Blue Center)” coil adjustment. The “RCA Color TV Servicing Handbook Volume 2” lists a dozen different convergence procedures. Most of them are 12 dial procedures, but there are three 13 dial procedures. “Procedure C” matches the Magnavox convergence board the closest. So I tried it and it works better than the Sams convergence guide. Here is the RCA Handbook guide’s diagram. It has pages of narrative procedure description, which I won’t include here:
I will take a few more attempts at getting the convergence perfect. It is still has some convergence issues in the upper left corner and the right side of the picture.
