Why does my flyback transformer doesn't have a feedback? and why doesn't it work when I wind my own around the core?

Why does my flyback transformer doesn't have a feedback? and why doesn't it work when I wind my own around the core? there is no voltage coming out of my custom windings, but the HV coil does generate voltage.

pwnag36 years ago
same problem is it a computer monitor flyback?
Circuit ?