Tesla pancake coil circuit test and mesurments

Here i am trying a diferent circuit setup in reguards to the DOVADA device setup. I am useing a tesla pancake bifilar coil as the inductor,and a signal generator .\r
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This is a test with a Tesla bifilar pancake coil (made à la Jiffycoil methode). The wiring is on a standard Joulethief circuit with a TIP 31C transistor for voltage up to .