The bifilar pancake coil at its resonant frequency

[ramset]

Zephir
MANY  persons here played with setups like you posted above for YEARS ,and no one EVER found anything anomalous
well honestly I only spoke with about twenty or so persons who share here and elsewhere open source .
probably thousands of hours collectively spent there and even with Pancake coils

have you done work there which could help guide  experimenters towards a true anomaly ?

maybe a build you can point to ??

[Zephir]

MANY  persons here played with setups like you posted above for YEARS, and no one EVER found anything anomalous

This is because the people who found it immediately leaved this forum (Akula) or placed embargo to every just a bit useful information about it (NelsonRocha). So you can get a perception, which you just presented here. But if you would construct the Joule Thief and Tesla coils with bifilar coils like TinselKoala is doing, then you never will find something interesting, because you'll utilize this component just in applications, in which it behaves like normal coil and in which its anomalous behavior cannot manifest itself.

If you want to find an overunity for inductive hob for example, you shouldn't use and wire it as a hob, because the hob is supposed to consume energy, not to produce it - got it? You should therefore know, where to look for it - and it requires to have strategy and some at least rudimentary theory of overunity prepared. The plain blind tinkering can get successful only by pure rare accident - and all people who succeed with it have no motivation to share information with others anymore. I can point to many builds (for example Infinity SAV Team  already collected many working findings) - but the viable route for collective overunity development leads through public sharing and improving theory, not experiments. We already have YouTube full of working overunity devices - but because we don't have their theory, we cannot replicate them.

[TinselKoala]

Infinity SAV team? You are really hilarious. You might as well cite Veproject for your "overunity" reference.

Meanwhile:

Tesla Bifilar Pancake Joule Thief, lighting up 24 LEDs in a 12-series, 2-parallel array, using a PNP transistor (BC556B) and one AAA battery.
(That is 12 LEDs in series, and this in parallel with another 12 LEDs in series.)

(This is my JT testbed, the toroid coil at bottom left is not connected for this demonstration.)

[Zephir]

The principal test bed for overunity device is the scalar bubble: the planar capacitor or pair of (electro)magnets in opposite direction of magnetic poles. The bifilar coil is using air core, so its effect are weaker, but its magnetic fields are colliding along larger area. The scalar bubble exhibits increased level of electrostatic noise, which can be detected as a voltage with pin diode (small surface area of PN junction prohibits averaging this noise).

[Zephir]

This is my JT testbed, the toroid coil at bottom left is not connected for this demonstration

It isn't, which becomes evident, once you attempt to answer the question: "And what this bed is testing?".

The testbed is always supposed to test some theory of function. The scientific method is always based on falsification of theory or at least model.
The blind random tinkering is not falsification of theory, i.e. it is not scientific approach.

What you demonstrated above as a testbed is a trivial Joule Thief oscillator circuit, just with pancake bifilar coil instead of normal toroid one used for positive feedback (every oscillator requires some positive feedback loop). The Joule Thief circuit (Armstrong oscillator) utilizes the transformer effect of inductor pair for this purpose, which bifilar coil provides too - but this effect is very classical one - so it doesn't lead into overunity. Once you utilize the pair of wires as an transformer, it will work like the transformer in similar way, like when you use an induction hob as an induction hob. No matter if you arrange the pair of wires into form of bifilar, solenoid or toroid or caduceus or Rodin coil or whatever else coil - the geometry is not important, the principle of function is what matters here. The (utilization of) very classical principle (of transformer) provides very classical results: nothing less, nothing more.

Your testbed is therefore testing the ability of bifilar coil to serve as a transformer for positive loop in Armstrong oscillator circuit. This is nice, but nothing spectacular, miraculous the less. Even if you would achieve to use an overunity transformer in JouleThief circuit, it wouldn't become a self-running just because of it, because the secondary winding is used only for driving base current of transistor. The transistor doesn't care, if you bring larger or smaller current into base, once the condition for positive feedback loop gets fulfilled. If you increase the current of base electrode, you'll just have higher amount of electricity wasted.

So if you want to demonstrate anomaly with your coil, you shouldn't utilize it as a boring classical transformer - you should give it chance to demonstrate more/something else.