Quote from: Magluvin on April 15, 2017, 07:57:11 PM
Your coming up with 10ohm on conrads coils shows your inexperience with seeing such and making even an approximate determination of the resistance and it is far from showing that you are an authority in this area. Then you say that the difference between 10ohm and .4ohm doesnt make a difference anyway.  Run the sim and see how long it takes for the ring to die down in each example. Its a large difference and your assumption of 10 ohms then posting all the formulas trying to show big issues to prove your view against others views, then yeah, it should be pointed out that you are not producing accurate info in your argument. That 10ohms wastes a lot of energy in the circuit at a very unnecessary and unrealistic rate. 

So maybe, if i have to be blunt, just shedup.

Mags

No it doesn't show my inexperience, it shows that I was simply tired and took TK's resistance measurement from his clip instead.  Stop spinning.

As far as your silly complaint about the resistance goes, and since you portrayed me as a teacher, let's imagine this scenario:  The teacher goes through the effort of analyzing a circuit and applying various concepts involving inductance. capacitance, resistance, frequency, energy and power analysis and goes through a step-by-step logical analysis and arrives at a satisfactory conclusion.  Then some student in the back of the class raises his hand and objects and says, "But sir, the resistance was 11 ohms and not two ohms!"

There is a pregnant pause in the classroom and then nearly every student turns around and glares at the problem student and makes it clear to him that he is acting like a fool and an idiot and is either being intentionally disruptive, and/or he is too dim witted to realize that the whole point of the exercise is to understand and appreciate the analysis and the values of the components are just illustrative and not critical to understanding what is really going on.

To be blunt, put your brain in gear and think properly and stop playing the hapless fool "out to get me."

What's the magnet wave look like? Here's a view of a "Galactic Wormhole":

Quote from: MileHigh on April 16, 2017, 10:07:28 AM
Yes it's a strange question because it was a discussion about Magluvin's mistaken belief that "since a series bifilar coil can look like the wire resistance only, then I can pulse a series bifilar coil and get an instant magnetic field without having to energize the inductor."  It wasn't about the bandwidth-limited square wave excitation that you see in Conrad's clip.

Hi MileHigh,

Well, it is true that Conrad's function generator happened to produce a distorted square wave instead of a beefy brick wall wave form at the 4 MHz frequency involved but nevertheless it was already far from a sine wave, close to "imitate" a switching waveform, do not you think?

For me, this is not an explanation,  and I do not think what Magluvin wrote is a mistaken belief, I agree with him.

Obviously, the claims have to be proved by measurements and hopefully it is taking place in this thread.

Gyula

Quote from: Grumage on April 16, 2017, 09:01:40 AM
Would I be correct in thinking that these coils/transformers were specifically designed for DC pulses?

Cheers Graham.

Nope, the wording of the patent indicates that it is a device that is supposed to work with sinusoidal AC frequencies.  The patent states what amounts to an observation that at the resonance frequency the device acts like a series LC circuit and offers no AC impedance and only shows up as wire resistance.

It also states that the inherent capacitance can also be used for power factor correction.  That would imply that Tesla envisioned the series bifilar pancake coll as one half of what would presumably be a large air core transformer driving an inductive load.

Here is something that may have been a possibility from my mind's eye:   A small factory owner at the turn of the 19th century has a workshop that includes a dozen half-horsepower motors that are always on that drive some small pieces of machinery.  He complains to the electric utility that he is being overcharged for his power consumption and/or his installed electrical wiring is running too hot from resistive losses.  Tesla wanted to put a series-bifilar-based air core transformer next to each machine to do the power factor correction for each motor.  However, this never was realized because other and better methods where developed for power factor correction and the patent was never used in a working device.

I am no Tesla expert, but that is my best guess.  In old factories there were also very large electric motors that drove a long main driveshaft and belts connected to the driveshaft powered the various machines.  I am pretty sure most of us have seen these pictures.  So perhaps Tesla envisioned a giant series-bifilar transformer for this case, who knows.

The patent says nothing about pulsing the coil at all.

Quote from: gyulasun on April 16, 2017, 10:47:33 AM
and I do not think what Magluvin wrote is a mistaken belief, I agree with him.

Really, you believe a series bifilar coil can can produce a magnetic field because when you pulse it it appears to be resistive only and you get near-instant current and a near-instant magnetic field without doing the work to energize the inductance?

I agree, we can temporarily forget about our existing knowledge and this claim and/or belief will have to be proven with measurements.