Dear Mr oldtube.

I'm not quite sure what the problem is that you are having. It sounds like the fault you are trying to describe is a distortion of the picture at the sides. On this model I have seen the sides of the picture constrict and even move like a Hula dancer. I would again replace the AD162 Germanium transistor with another, from a different source.
Another clue is that the action of the E/W controls do not operate properly.

In which country do you live? Are the ventilation holes in the cage of the power supply square or round? Also check C420, S422, and R422. S422 usually kills R422 and the ASD162 transistor.

Best wishes

Wayne