I've been working on a few ATT 705s at work (they are monochrome
terminals that emulate a few different types of terminals, but they are
so ancient, I can only guess that those would be Wyse and VT100 and the
like). The major problem with them, aside from the screen burn, is one
corner or side is 'pulled' in or up, creating uneven lines of text.
I've adjusted the yoke, moved 'magnets,' and still can not get anything
straight or at 90 degree angles.

Any suggestions?