Multi Purpose Flyback Transformer???

[Tubejunke]

Anybody out there had any experience using one of these? Mine is a Thordarson Fly-5. The box says multi purpose, 70 degree. It looks as if it would mount in my Magnavox CTA492AA, but will it work? The CRT is a 21ATP4 if that makes a difference or helps anyone who may be able to see if it will work. There is a data sheet with it that says no load volage 15kv. Also it says maximum scan 70 deg. and lists "matched" components.

The crt specs are 20kv at 2nd anode and lists as being 85 x 90 deg. Am I looking at the right #s? Could it still work even though it LOOKS like the specs are different? Do I need the "matched" components? Just some key questions. I sure would like to get this thing going again but I havent found a good used or NOS flyback so far. Mag# 380623

Any advice would be great!!!