[John Folsom]

A few notes about flybacks. As old tv nut stated, a flyback is designed to be a high Q resonant circuit. The period of this resonance must be short enough to cause the CRT beam to sweep back diring the horizontal retrace interval. The horizontal output tube provides no dirve during the retrace period. The idstributed capacitance of the flyback winding itself along with the distributed capacitance of the yoke, and assiciated circuitry and wiring resonates with the linuctance of the flyback windings and yoke to form the resonant circuit and determin its natural frequency. All of which makes the parameters of the flyback rather critical. And very small changes in the physical characteristics of the wire gauge, insulation, and geometry dramatically change the parameters of the flyback. So it is a non-trivial thing to wind one. A dedicated "universal" type of winding machine is require (or pi winding). These machines are complex to set up and operate.

I would like to find a machine someday and give it a try.... but so far, no luck.

There are no substitute flyback transformers for any of the early color TVs until the RCA CTC-7. A number of the earlier designs used RCA flybacks, but not all, and to get a replacement you must find an original NOS one.

Good luck to us all.