I have 20 MHz oscilloscope, was flashing brilliance, I disarm hv transformer , find burnt coil; dont know; few laps; secondary having to rewind; ask for help, transformer, 4 pin primary coil, 02 turns; transistor base to R623; 12 turns of + 14v to q608 2sd313e collector; open secondary coil; I know not calculate ferryta transformer; if you know of silisio metal transformer, ask for help, be grateful for any contribution, core 25mm long x 13mm wide x 8 mm thick, approximately circular core 5.5mm diameter x 6mm long, excuse me, I do not dominate English