Self accelerating reed switch magnet spinner.

[synchro1]

Here's a video by Tinselkoala, demonstrating that the inductance and magnetic field of a hairpin spool coil are zero. He then goes on to measure the same bifilar spool connected in series, measures inductance and calls this series bifilar spool a "True Tesla Coil" when Tesla's "Zero inductance coil" was patented as a flat coil, not a spool coil!

http://www.youtube.com/watch?v=OcFySCAxLzs

Quote from Allcanadian:

"I was looking at tesla's patent for his bifilar coil a long time ago, and it's interesting to note that tesla's bifilar coil is "flat", and only works as tesla described when it is wound "flat" with no core. I built tesla's coil and put it on my scope and you should have seen the frequency hash this thing develops, it is nothing like the normal bifilar coil everyone is building. Tesla stated as well that a ferromagnetic core only dampens oscillations, If you want to see some weird shit try (not) building tesla's coil the way his patent states it should be built".


I think it would help to experiment with many different kinds of output windings on the "Synchro coil". The current series bifilar type worked fine for me, but I never tried anything else. Something different could work better!

[synchro1]

@Tinselkoala,

"Magnetoresistance is the property of a material to change the value of its electrical resistance when an external magnetic field is applied to it".

The electrical resistance in the copper wire material of the magnet core coil is changed when the external field of the magnets is applied to the wire. This is a different measure but related to self inductance. I used the term "Reluctance" not resistance "to change in current direction", as a measure of the magnet core's influence on the electrical resistance in the coil wire.

The point here as I understand it, relates to the series bifilar spool's neutrality to magnet strength effecting the electrical resistance in the copper wire. This characteristic of the series bifilar connection was learned by me from engineering text, not dreamed up. This non-effect was never laboratory tested by me but something I believe to be true  as a consequence of many hours of experimentaion.  One would have to measure the resistance of the "Synchro coil" wire with and without the magnets present to confirm the proposition. This amounts to a pretty simple test, and Conradelektro should easily be able to conduct it with his removable bobbin magnet core and a multimeter.

[TinselKoala]

@synchro:
You really shouldn't misrepresent my videos. As I recall, around the time of that video you (I believe, perhaps it was someone else) were posting links to a page that spoke of a cylindrical coil with the Tesla bifilar connection and made incorrect claims about its energy storage, etc. I happened to have a coil with that cylindrical winding configuration lying around so I used it for the demonstration. I have always made the point in my postings that the patent 512,340 refers to a flat coil, precisely wound so that windings are parallel in the precise order listed in the patent, in order to take advantage of the increased interturn capacitance in the way that Tesla intended in the patent. The cylindrical coil used in the video preserves that property and is covered, IIRC, as a variant in the patent or in subsequent claims and usages.

Tesla never claimed it was a "zero inductance coil"!! Those are your words and indicate the depths of your misconceptions!

This characteristic of the series bifilar connection was learned by me from engineering text, not dreamed up.

Can you give a reference to the engineering text where you learned about the difference in magnetoresistance of the two windings? I'd like to see the exact explanation in the text. I think that you are misinterpreting "reluctance", "resistance", "magnetoresistance", and "inductance", because what you seem to be saying is contradicted by experiments that anyone can do, as I showed in the video you linked.

The magnetoresistance effect in copper is tiny at normal temperatures and normal magnetic field strengths.

[TinselKoala]

@Tinselkoala,


                   I am willing to bet you any amount of money, wiseguy, I'm very serious about this, that a single wire coil placed on the JLN hotplate will start to melt, while the Tesla serial bifilar pancake coil transfers nearly all of the hotplate eddy current inductively without gaining in heat rise. Now you can put up or shut up!

But that's not what you claimed at first. The single winding coil will need extra external capacitors in order to attain the proper total impedance for efficient power transfer, where the TBC will not: that is the whole point of the patented winding. And it's not "eddy current" that is being inductively transferred. Let's not forget, please, that I was building and demonstrating inductive power transfer systems quite a bit before JLN started playing with his inductive hotplates and reporting false overunity measurements from them.
Why would I want to make any kind of "bet" with someone who keeps moving the goalposts and who makes up their own meanings for words?

                   You're telling me that if I plug the Tesla Pancake coil into a 120 volt A.C. wall outlet that it will catch on fire too. I already tried that, so maybe you're right about something!

I'm telling you that your original claim is incorrect. If you have the right number of turns in your 120 VAC TBC you can do it safely, but that wasn't the issue in your original claim, which was, I believe, about resistance.

[synchro1]

@Tinselkoala,


                   I understand mightily why you would a need a capacitor to reach the same resonant frequency with the single wrap coil. I understand about the resonant winding feature for the pancake!  Milehigh trashed me out about these points on the "Electromagnet" thread. Plus extra magnetic field per watt has been tested and proved over on energetic forum by compass needle at an additional 75%.


                    Your non- zero self inductance measure on the series bifilar spool was completely fraudulent and misleading in your hairpin comparison video.


                   The other point is, I already made the Ohmic resistance measurements on the magnet core series spool bifilar and tested no change in resistance. That's why it's the wrap of choice.