Hi guys
I see that you have already make some first hypotheses about the working principles which lay behind Cook's coils. Especially Forest's finding is something that helps a lot for further investigation as it is more acceptable to my perceptions. And I speak about the case of having a primary which oscillates and supports the whole assembly operation, instead of having a coil system which infinitely oscillates.
A key for me lays behind Cook's statement about magnetic action in the center of the core. This by itself shows that we have an opposite filed operation between each coil pair. And as partnered coils are in the foreseen, then I will make a new attempt to fill this magic icon.
Please see attachment drawing.
What I will try to do is to make a drawing which supports the operation described by Cook with compound coils, so to be more easy to imagine how a two coils system would work.
For shake of simplicity I will assume that the trigger coil is pushing only one side by rectified pulses.
Both pairs are wounded the same direction as told by Cook.
Phase A. The trigger coil is pushing North to our first core. At this first phase, secondary currents will be developed at the ends of primary and secondary coil on the core on your left. Coils 1&2.
Study with right hand rule the direction of the induced currents I1 and I2.
I1 will induce the shown polarity on coil 3, and this coil 3 will induce in turn the sown polarity of coil 4.
But because I4 is higher than I2 as Cook correctly explains, then at phase B we see a reverse in direction of the initial current I2.
At this phase B, we have two currents on both loops, where they induce internal magnetic fields inside both iron cores, which are in an opposite fashion.
And here comes Cook's description about 'magnetic field action in the center of the core'. Hmm
So now, at the peak of the externally applied pulse, we have a tension inside both rods which is stored in the middle of the rod waiting the start of next cycle to be released. When the externally injected pulse starts to decay, then we have a change in current polarities, and an opposite in action magnetic fields start to develop inside both cores. But what about the already stored energy in the center of the coil from previous cycle? Where this energy go?
This stored magnetic energy will manifest itself at the begin of the next cycle. It will give a push to the new direction of the induced magnetic fields to reach their maximum tension quicker. But wont this reaction produce a higher current inside of both loops during this second cycle?
Cycle by cycle, wont this current addition eventually lead to a some limit? The limit could be a factor of wire thicknesses and others like length, core material, saturation points etc.
So I believe that the whole situation acts like having a spring on the middle of each rod which acts as to constructively build a steady oscillation with enough current for usage.
So according to this and if everything is right until now, then how a two coil system could be built? Will it be two different cores with a coil on its rod, or we are going to use a one rod system with two coils wounded in a bucking mode?? I pick the second...
Thanks
Jeg
Ps. The attached coils are 300m each, of awg15 wire, in separate PVC tubes which can move on the core, the core is a bunch of iron rods 1m in length rusted or painted doesn't matter. Core's diam. 10cm. In case, I placed two aluminum foils underneath. 600m of wire correspond to 499khz. System vibrates at 479khz. I will tune it with cap to a lower sub. Inserting or taking out iron rods, help on tuning also.