Hi Steve,
O got a question. I just want to understand better the flyback topology. I've been reading quite a few articles and what you said. And that is what I understood.
Current flows down R41 and stops at ZD1 and C25 but flows to Q9 base. That allows the primary (2-4) and induce a current on the feedback (1-5) and on the secondary (7-9).
The feedback current will trigger the transistor to stop conducting and as the magnetic field collapses it flows into the secondary? If that is right what phenomenon (or components and its characteristics) makes the current stops flowing to Q9’s base?
Also the wave generated by this oscillation wont look like a traditional AC sine wave. It will resemble a square wave more likely?