Confirming the Delayed Lenz Effect

[gyulasun]

Hi Farmhand,

Thanks.  Unfortunately I do not have a variable frequency generator to do those tests.  MAybe I can chime in to some place to let me use but not sure when I can do it.
My initial guess is that the resonant frequency cannot change with voltage level in resonant circuits unless the core in the coils goes near or into the saturation area.  Or the insulating material of the wires (which has a role in capacitance) changes its dielectric constant with increasing electric field amplitude.

Gyula

[synchro1]

@Gyulasum,

              Thanks for the test. I plan to email your results to "Tesla-Coil-Builder" for comment.

Let me say I did notice a stark difference. Tesla-Coilbuilder tested his coils individually, not in series with a power source!

[gyulasun]

Okay, just do that. 

[TinselKoala]

@Gyula:
Excellent testing and demonstrations. You are doing a lot to clear up the misconceptions held by certain people about what a "Tesla bifilar" coil is and how it works.
There is one other type of "bifilar" coil that is often used and confused with Tesla's design. This is the "hairpin" coil. The hairpin configuration uses the same amount of wire but is non-inductive. If you have the time, you might consider winding a third bolt as a hairpin, and repeat the inductance and electromagnet tests with it.
The hairpin winding is just what you did for the Tesla bifilar, but without cutting and splicing the ends.

ETA: The Function Generator and the Oscilloscope are essential instruments for any electronic experimentation, especially involving pulses, coils, and so on.
You do _not_ need absolutely modern, digital, SOA bleeding edge kit. Most people will find a 3 MHz function generator and a 60 MHz dual-trace scope entirely adequate for their daily needs. Three hundred dollars US will buy a decent used analog scope and basic FG.

[synchro1]

You're holding those coils in close adjacency. There's a strong chance their fields are under mutual influence tested silmultainiously and in close proximity.