1962 RCA B&W Portable

[maxhifi]

Originally Posted by TUD1

No. I'll take it apart tomorrow and see if I have that horizontal output tube. I know I don't have the HV rectifier - I already checked because it has a loose base.

If the gap is on one side but not the other, the pic
Could be off centre. Try an Indian head test pattern from a DVD and RF modulator and the cross hairs should be in the middle of the screen, if not you just have to centre it. The flat metal rings just behind the deflection yoke are how you do it. Rotate them using the tabs, until the picture is centred vertically and horizontally. I end up using a ruler to get this dead on usually, I never am happy when I do it by eye. Make sure linearity is perfect first though or you will be doing it again.
High line voltage could cause excessive width which would mask the problem of an off centre picture by filling the whole screen. This is a nice set, at this point I am restricting future collecting to only RCA made equipment... Not saying other stuff is bad but gotta have some focus to keep quantity from getting out of hand! Quiz for original poster, are you aware why your set is called a new vista?

Electronic M that is horrible! Friend of mine has same problem and resorted to powering critical loads through a toshiba commercial grade UPS. Talk about a brute force solution but works better than moving for the sake of clean power!