Magpwr:
  The red taped inductor was 12 turns, or (twice 12 turns, possibly bifilar). The yellow taped feed back loop is also about 12 turns. Both together make up 1/2 of the number of winding on the bigger output coil, which has 48 turns, if only a single layer was used. There are no exact turn counts that I know of.  These are my observations, and how I made my big air coils. You can compare them to what you see on the video.
  And there are no correct diagrams of that device, either.  All that have been made are wrong. And that is also why it looks more complicated in the diagram than can be seen on the video.
  We did a lot of close examination of that first self runner video, back then, but could not get it all figured out, as there were too many unknowns.
 I switched over to the second Akula device, when Ruslan came out with more information on how to replicate it.

  Geo was going to connect the TL494 driver board that he made as a replication of the first Akula device driver board, to the grenade/yoke set up. But, hasn't shown it if he did do it. So, I don't know what happened with that idea.
 

hi Nickz,

It makes sense why no one ever had a self runner.Because all us were working with wrong information as provided by Akula and reverse engineering was not done well enough.

Yes Ruslan came very close related to the Multilayer winding which my spectrum analyzer reveal 1.76Mhz for one of the harmonics it does have few other peaks .Winding specs 48,48,24,24,12,12.

I going back to the old device of Akula since all his success is all based on the old coil assembly which eventually lead to his first self runner and without Earth.Stability is questionable tough but that is not the important factor.

I am surprised that many of Akula old videos were deleted and i never knew they existed until i bump into those old videos recently as diligently backed up by some user.

I can't resume work with new device due to insufficient input.But i think it's better to start with old device which may reveal something.

As expected this is no easy replication/duplication feat.

But i do have sufficient input on the center coil,number of turns to yoke via capacitor.
I am only left out with the outer winding spec which i need Grumage version before i can compute something in my head.Another long method is to kill my time digging through years of information
and filtering unwanted garbage.

"I would appreciate if i get someone can provide input on Grumage winding only for the outer winding for me to study in my head".

I have yet to implement PWM circuit with interrupter which i can easily create in minutes but i am stuck with other important things.

I am very curious to know what kind of waveform i would get across high voltage capacitor after 3 turns with interrupter to pwm circuit in place.I would be disappointed if
i get to see a sine-wave but it's very unlikely this time.
 

I going back to the old device of Akula since all his success is all based on the old coil assembly which eventually lead to his first self runner and without Earth.Stability is questionable tough but that is not the important factor.

I think you have made a wise move to steer away from continuing with Ruslan's device replication. As much as I feel that Akula faked the videos of his higher powered device, to me he comes across as being more knowledgeable and technical competent than Ruslan, so there is a possibility that he did show something significant in his early videos which have been deleted.

Dear magpwr.

The coil was wound per " so called schematic " that was floating at the time.

I wound 43 turns outward from the centre, then folded back the wire on itself, and came back down 43 turns. If memory serves correctly I then caried on in the same direction doing the same to the 43/43 for the other half.

I hope the above information is of use to you?

Dear Nick.

If you remember?  Akula demonstrated this one running without a ground connection.

Dear Dog 1.

I liked your question, Re, the use of a good quality amplifier. Well to coin a phrase that Erfinder uses, I just " copied and pasted " !!

Thanks to the diligence of this little group of experimenters a lot has been learned over the last two years and maybe, just maybe, a breakthrough will occur.

BRAVO !!

Cheers Grum.

hi Grumage,

Thanks Grumage.I got a clear picture in my head regarding the 43turns.

May i ask the 20B meant for the 12volts loop back for the inverter is the coil is winded outside the 86turns 2.5mm sq meant for the bulbs.

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At this point let me tell you what i know base on the current information which i throw inside my head.

Everyone,

The 0.75mm sq with dual layer of 43 cw and 43 ccw would have internal resistance which is lower than the 86turns 2.5mm sq for the bulbs.My justification below-

Base on old experiment conducted nearly 2 years ago and by the way this was not taught in our books.

We know that 2 similar value resistor or 2 given winding eg:50 turns connected or winded in series would have resistance doubled as what was taught in the books.

But not many people know that by connecting 2 set of coil example winded 30 clockwise and 30 counter clockwise side by side say on a pvc pipe would have the total resistance equivalent to 1 coil depending on the spacing.

In numbers example 0.9Ohms cw and  0.9 Ohms ccw coil winded  side by side would give total reading as 0.9Ohms instead of 1.8 Ohms.This is measured by a simple multimeter in Ohms setting.
The measurement is the same even if you connect probe +/- either way.

This is what i recall base on experiment done nearly 2 years ago.If anyone don't believe me and take me for a fool do try this simple experiment as describe above which defy logic if you are talking about resistance.


So in another words it would be like 0.75mm sq wire for 43turns is made to look like 3mm sq (0.75x4) estimate with dual cw,ccw layer.This part is just an estimate not to be taken too seriously.


-------------------------------
2cent worth of information-
Do anyone know that the kapanadze winding 48.48.24.24.12.12 have inductance reading of around 158uH and this inductance reading is only half of around 23turns into 4 layers(winded on top) which give around 320uH.
 Ratio 1.98:1

The 90turns used shorter length wire but it's got nearly twice the inductance of around 37.5meter wire used for kapanadze winding.Think about it.

   

  Guys:
  Really, you can try to use the above diagram, but as mentioned it is ALL WRONG. Just look at how the bulbs are all connected up.
There is no physical wired connection to those bulbs, as is shown in that diagram. No ground, Many other points as well.
The inductor is not 7 turns, but 12, or twice 12 turns. The feedback coil is 12 turns, not 20.  Don't believe me?  Just count them.
   Also, if you bother to actually count all the coiled turns you'll see that that diagram does not represent what Akula has shown in the video.  There are not 6 fets, either. 
  IF Akula made that diagram, he didn't build that device as is shown on that diagram.

Nick,

C,mon, Akula is not going to hand it to us on plate, any more than Ruslan is and is most unlikely to show a real worker in detail on video. Mags hunch is that the early circuit schematics from Akula may be closer to being workers than anything else published. Experiment with different turns counts and numbers of fets using the interconnections shown. There are many variables to play with. Also, given that we really do not know the modus-operandi, turns count may not be that critical.

   But we do know what we can see. And, what we can see is not that anything like any of the diagrams.
   So, how would you go about trying to replicate something that is not being fully disclosed. Using diagrams that aren't representative of the actual devices? And which are made for disinformation purposes. 

  At least Geo build same driver as was used,  and may have the actual schematic for it.
 

 
"magpwr"

This image of you is the 28 winding 2.44Kv is no varistor
whether the image of the second channel of 3 windings is identical interests me peaks?
and how it will affect the attenuation of these rings in a heater?
because if their absence will help to improve productivity will it looked like almost sinusoidal 

"magpwr"

This image of you is the 28 winding 2.44Kv is no varistor
whether the image of the second channel of 3 windings is identical interests me peaks?
and how it will affect the attenuation of these rings in a heater?
because if their absence will help to improve productivity will it looked like almost sinusoidal 

hi Tomtech29,

It's around 320Vpp across 3.5 turns 6 mm sq.

It will be sinusoidal once we combine with a capacitor after 3 turns and running at resonance  because we have never implemented interrupter to PWM circuit before.

No changes if it's just PWM OR PLL circuit.

As mentioned earlier i am curious myself as i know how a waveform would look like with interrupter with my version of tesla coil with spacing between winding.

But i do not know how a waveform would look like across capacitor at resonance using interrupter with TL494 as i have not done this before.
Interrupter circuit should  be running around 4 ..7times or more than the TL494 manual preset frequency which also running at resonance for a given setup.

pulse width can be anywhere from 200ns....2us for the interrupter which running way below 50% duty.

Even a additional TL494 can be turned into interrupter circuit for TL494.

Got to rest...

  Might be a continued case of the blind leading the blind.

You said it Nick!