Using Back EMF to recycle electric energy, within a resonant bifilar pancake coil

With this bifilar coil experiment I recycle electric energy, by using the Back EMF to create resonance into a second coil.

The next experiment will show this with only one coil, that produces a larger voltage resonance, by combining both methods.

The reason I used 2 capacitors of the same size (10nF) is a current amplified resonant circuit. inspired by this article:
http://www.accelinstruments.com/Applications/WaveformAmp/Magnetic-Field-Generator.html

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