Partnered Output Coils - Free Energy

[gyulasun]

I made two air-core solenoid coils, shown below. They both have the same amount of the same gauge wire (approx. 3 meters). The one on the right is the Tesla-series-bifilar, you can see the connection from the top of one winding to the bottom of the other one. Both coils measure 41 microHenry and 1.0 ohm DC resistance (ProsKit MT-5210). I don't have a gaussmeter so I had to use a sensitive ratiometric Hall effect sensor to measure the fields (Allegro A3503). I applied brief pulses from a used 9V battery to each coil, with the Hall sensor positioned in the same place on the coils for each test. I powered the Hall sensor with 5 VDC from a regulated supply, and I monitored the sensor's voltage output on the oscilloscope at 500 mV/div.

The pulses produced about half a division deflection (call it ~200 mV) from the 2.5 V null baseline on the scope trace. I could detect no difference in the readings from the Hall sensor between the two coils.

I would be very pleased if someone else would do a test like this, using an actual gaussmeter.

Hi TinselKoala,

You can surely recall tests on bifilar coils Magluvin and I did about 2 years ago. We did not use a gauss meter but paper clips and nuts to see how many of them can be lifted up by the normal winding and then by the Tesla bifilar (series aiding) winding.
For seyshelles to see them,      here are the links:
http://overunity.com/13460/teslas-coil-for-electro-magnets/msg359705/#msg359705 
http://www.overunity.com/11350/confirming-the-delayed-lenz-effect/msg357838/#msg357838
http://www.overunity.com/11350/confirming-the-delayed-lenz-effect/msg357952/#msg357952

Now your tests with air core solenoid windings (normal and bifilar in series aiding connection) completes the test series on such windings, with ferromagnetic and air core coils.  I am a 100% sure that using a gauss meter for coils with ferromagnetic core would give similar results i.e. no flux increase for the bifilar vs the normal winding when the wire lengths are the same.

Gyula

[MarkE]

Hi TinselKoala,

Thanks for showing this test and hopefully some more would come as your time and mood permits.      
Indeed what the shunting does is pretty interesting.  The lamp may have approximately a 6 Ohm running resistance, right?  From the net I find its spec as cca 2.1 Amper at 13V

Gyula

The lamp resistance is not fixed.  It swings wildly as the bulb heats up and cools down.  In the old days before LED indicators, preheat resistors for incandescent indicators were common place in order to reduce the current surges that would occur switching into cold bulbs.

[gyulasun]

The lamp resistance is not fixed.  It swings wildly as the bulb heats up and cools down. 
...

Yes I know it, thanks.  Such lamps are nonlinear loads.  This is why I indicated the approx. 6 Ohm for the 13V (12.8V) and 2.1A data I found for such lamp types on the web.

[Farmhand]

Wasn't there also tests done that showed a difference in the resonant frequency of two coils of equal wire length with one coil wound in a conventional way and the other coil wound as a series connected bifilar wound coil ? The way I remember, the series connected bifilar coil had a lower resonant frequency.

Tesla explains quite clearly in the first few paragraphs of the patent what the object of his coil winding was. https://www.google.com/patents/US512340

Quote from patent.

My present invention has for its object to avoid the employment of condensers which are expensive, cumbersome and difficult to maintain in perfect condition, and to so construct the coils themselves as to accomplish the same ultimate object.

And just previous to that, that it was intended for use with alternating current. The Name "COIL FOR ELECTRO_MAGNETS" Seems to throw a lot of people, it's not meant to be used with Direct Current, it's for Alternating Current. In a way every coil that produces a magnetic field is an "Electro-Magnet" of sorts.

In electric apparatus or systems in which alternating currents are employed the self induction of the coils or conductors may, and, in fact, in many cases does operate disadvantageously by giving rise to false currents which often reduce what is known as the commercial efficiency of the apparatus composing the system or operate detrimentally in other respects. The effects of self-induction, above referred to, are known to be neutralized by proportioning to a proper degree the capacity of the circuit with relation to the self-induction and frequency of the currents. This has been accomplished heretofore by the use of ' condensers constructed and applied as separate instruments.

In my opinion the patent kinda says that the distance between the turns and the applied voltage are factors in the amount of "capacitance secured", due to capacitor plate separation distance and the required voltage to utilize the plates capacitance properties. The adjacent turns being the capacitor plates.

ie applying 2 volts to a parallel plate air capacitor which is designed for 10 000 volts won't work very well.

In the ordinary coils the difference of potential between adjacent turns or spires is ,very small, so that while they are in a sense condensers, they possess but very small capacity and the relations between the two quantities, self-induction and capacity, are not such as under any ordinary conditions satisfy the requirements herein contemplated, because the capacity relatively to the self-induction is very small.

In order to attain my object and ,to properly increase the capacity of any given coil, I wind it in such way as to secure a greater difference of potential between its adjacent turns or convolutions, and since the energy stored in the coil considering the' latter as a condenser, is proportionate to the square of the potential difference between its adjacent convolutions, it is evident that I may in this way , secure by a proper disposition of these convolutions a greatly increased capacity for a given increase in potential difference between the turns.

It should be fairly clear that the invention was a way to do away with expensive condensers/capacitors, expensive at the time.

No mystery. I don't get what the fuss is about this coil winding method. 

Basically he achieved kind of the opposite with his "COIL FOR ELECTRO-MAGNETS" to what he achieved by spacing the turns to reduce the inherent capacity of his Transmitter coils/transformers.

[MileHigh]

Now your tests with air core solenoid windings (normal and bifilar in series aiding connection) completes the test series on such windings, with ferromagnetic and air core coils.  I am a 100% sure that using a gauss meter for coils with ferromagnetic core would give similar results i.e. no flux increase for the bifilar vs the normal winding when the wire lengths are the same.

Gyula

ConradElectro also did tests for magnetic field strength that I helped him with that showed that there was no difference in the field strength between regular and series-bifilar coils.

You are very diplomatic but many of us know that there is no rational reason for there to be a difference in the magnetic field strength between the two winding configurations.  You don't even have to build an experiment and make any tests.  All that you have to do is actually understand how a wire with current flowing through it produces a magnetic field and then by extension how a wire formed into a coil produces a magnetic field.  The truth is self-evident but I suppose if people want to run tests anyways they can.  But the truth is that you can conduct this entire experiment virtually - in your head.

MileHigh