Tesla's "COIL FOR ELECTRO-MAGNETS".

[Magluvin]

I guess a caduceus coil interleaved and connected like I said above would be the same. The coils where the turns are close together but cross over each other once every turn.

Mags

[synchro1]

The Tesla bifilar builds it's own internal capacitive charge spontaineously, without any artificial input. This is what the term "Self Capacitance " refers to.

[Farmhand]

I guess a caduceus coil interleaved and connected like I said above would be the same. The coils where the turns are close together but cross over each other once every turn.

Mags

Mag's, I think going by what I can deduce from various experiments that with a multi strand coil with twisted wire (like Litz wire) when we series connect the strands "Tesla style" we only get more self capacitance but not the increased potential between turns like the Tesla Patent coil does.

Gyula, I'm not sure ! I'll need to re read the patent, it helps for myself to take the time and read the whole thing from start to finish each time I gain a new perspective, and that's with any patent in general I think. I would think for the advantage to be not resistance the wire would be say 1 x strand 1000 feet long for a regular coil and 2 x strands 500 feet long for the Tesla Electro-magnet coil. I haven't re-read it yet though. I'll try to make time.

To all/anyone, I wonder if when using a dedicated charging coil as in my pulse motor or Tesla's IGNITER FOR GAS ENGINES PATENT would the capacitor the coil discharged into ( C2  in my motor drawings) be charged to a higher voltage because of the higher "capacity" of the Tesla type winding, I realize if it did the input would be more because the coil would take in more energy, logically. But the point is the voltage gained for the size of the coil and the "extra" inherent delay involved in that "lower resonant frequency as well".

But would the same turns in a Tesla type winding produce more voltage into a capacitor than a regular single wind if switched for a given time say 3 mS, (as in a resonant charging circuit case) ? Hmmmm. it must, Logic says so and the input energy would be more for the 3 mS time connected to the supply if done at the right frequency so as to cancel the self inductance of the charging coil. Big input, lots of energy small coil. Sounds good. 

Cheers

[gyulasun]

The Tesla bifilar builds it's own internal capacitive charge spontaineously, without any artificial input. This is what the term "Self Capacitance " refers to.

The term self capacitance in connection with coils has always meant: "The capacitive component of a coil, which reduces its impedance at high frequencies and can lead to resonance and self-oscillation, is also called self-capacitance as well as stray or parasitic capacitance."There can be other meanings of self capacitance, some are here where I took the above quote too:
http://www.answers.com/topic/capacitance#Self-capacitance   

[Magluvin]

Mag's, I think going by what I can deduce from various experiments that with a multi strand coil with twisted wire (like Litz wire) when we series connect the strands "Tesla style" we only get more self capacitance but not the increased potential between turns like the Tesla Patent coil does.

I realize that. For one, the interlaced windings replaces having immediate next turns close to each other by having the other coils windings in between them. This is probably what really helps to reduce the self inductance along with the additional capacitive attraction due to higher voltage differences. It works with the voltage divisions amongst the windings and rearranges them to provide the highest voltage difference between adjacent turns thus increasing capacitive nature in the coil because of these voltage differences.

So my suggestion of a 2 layer, each layer, series bifi in themselves, and winding the second layer from the same starting point as the first layer but wound in the opposite direction as the first, we have the capacitance within each layer, also 'more' capacitive action between the layers. And that capacitive nature has 100% voltage difference between layers, not 50% as within each layer already.

Maybe its nothing, but I have not seen it except for possibly a tightly wound caduceus coil with the wire flip for each turn or half turns, as one would see fit.

But this 2 layer where each bifi interacts through layers while each layer is bifi already may be something different.

If it is 2 layers, I will approach it as a large diameter to increase inductance so the coil wont have to be so long.

Ive set up my pulse motor to try some things with speedup while I finish the Arduino programming.  Till the controller is set up, I set up the motor to run using reeds and testing the bifi as a gen with loads and some other things.

Mags