Flyback for Monochrome Plato Student Terminal.

Hi. First time poster.

I have a bad flyback transformer on a video board that I've been unable = to locate. I've also been unable to find any information about this = transformer, or the board that it's on. I have lots of information = about what the board is inside of, but nothing on the board itself. It's for a green monochrome Plato Display Terminal, called an AST-1 = Student Terminal; even the original designer of the equipment, Jack = Stifle at the University of Illinois, does not have any information any = more on the video driver board itself. note: The AST-1 Student terminal = was supposed to be a lightweight inexpensive replacement for the = original Plato IV and Plato V terminals, and was manufactured by the = University of Illinois=20 I've been able to find many defails from University of Illinois = archives, including all schematics except for the video driver board.