Unusual vertical collapse

[zeno]

Originally Posted by MIPS

Is the high voltage low enough the picture has shrunk to where full horizontal deflection can't reach the sides?

My thought too.
Also does the B+ for the vert outs come from the main PS or a FBT winding ?
Anothe thing is the main B+. 113VDC seems odd. Almost every set
has between 120 & 135 VDC. Maybe you have 2 probs.

73 Zeno
LFOD !