This is an example of how the toriod should look, and if you can wind better than I can draw, good. The reason why the secondary goes onto the core first is simple. Magnetic fields are generated by the current flow through the wire, and coverage of the core as shown, allows for better magnetic coupling, and another condition. The effeciency of the magnetic coupling is the result of a parallel gang of primarys that will be wound over these windings as a step up transformer. For each inductor on the core in parallel the inductors follow the same rules as standard inductors in parallel, and the equasion to find the actual value of inductance is the same.
I find drawing using my mouse tedious. So, the primary windings shown here should cover the core once around as shown on the first half of the core as the blue wire. This configuration must be kept wound in the same direction primary per primary as you work around the core. Usually, the actual inductance value of each primary winding is slightly off from one to the next so, either use the measurement of each winding as a refrence, and then the calculation for inductors in parallel or, have them connected in phase, and in parallel before the measurement because, that is the value of inductance that you will need for your resonance calcualtion to find the right value of capacitor for the frequency you've chosen to operate the overall circuit at.
Using the target frequency, and not have any experiance at all, or not knowing the right equasions yourself already, and without help means you were never qualified to judge whether this would work or not. On the other hand I've been to college, and have worked the equasions several times, built several versions of this circuit, and tested them in operation and found only the results that I have posted at this site.
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