hi Bat1Robin2,

I have just read your post which contain the attachment which you have drawn a red line to input of IR2184 after the inverter gate.

You seem able to read and understand the circuit which makes it little easy for me to communicate with.
This way we are able to select if we want the nanosecond pulse to appear at top half or bottom half of sinewave across 0.47uf capacitor.

Do ignore other pll/non pll based circuits found where nanosecond generator is getting it's signal from dual channel output leading to the dual igbt's driver for yoke.
Reason being the nanosecond pulse will never be aligned at the very top or bottom of sinewave taken across 0.47uf capacitor base on my previous experiment.

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There is something else which i have overlooked apart from the recent discovery that a current transfer to Earth is one of the most requirement as indirectly revealed by Tariel,Vasmus,Ruslan and Akula using clamp meter as found in video.

Latest discovery-
If you take a look at the circuit which you have edited.There is a capacitor of unknown value which is connected across 28 turns output from yoke core.
This was not implemented in any of our replication device yet.

I then recall in the old Akula circuit diagram there is a capacitor which was connected in the bifilar winding which i have attached and circle in red for reference.
I only got time to resume experiment and etc from Thursday to Sunday.
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I have attached the Akula tesla coil tuning pdf which was typed by MenofFather in Russian base on Akula's video on harmonics,current to Earth.Also take note simple explanation from Akula on whywe should not go below 18khz for a air core multilayer transformer .
English google translated version is found bottom half of pdf.

The above translation is obtained from copy of old Akula video which was deleted-
stivep1 backup video-
https://www.youtube.com/watch?v=PPHipGkfSAY

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Other small tips for the Yoke driver-placing ferrite beads on both gates of  igbts would produce nice square wave without even seeing any ringing ripples at all.
I am using just 1 amorphous beads but common ferrite beads can be used maybe 2 is needed at the gates if you are particular about having nice waveform while in operation.
But take note igbt's like to be driven at 18volts which near the limits of TC4452 at 15volts is fine but igbt will heat up easily even with cooling fan if power exceed 100watts.

I am using FGA25N120ANTD -1200 V, 25 A NPT Trench IGBT  for yoke\toroid driver although the commercial 1800watt 240volts induction heater i own merely using the 11Amp version.
Another good  IGBT which produce even lower heat at 15volts for gate signal is the 50N6S2  600volts igbt this is without inbuilt protection diode version.

Dear Magpwr.

Ah, that brings back some memories !!

https://www.youtube.com/watch?v=LOqjTHmmumU

I used various coils within the main coil. The capacitor was formed using 2 concentric Aluminium slotted tubes with an A3 size lamination pouch as the dielectric. I was consistently raising 10 Kv at around 84 KHz ( fixed ) no mater what the primary drive frequency was set to.

I must have toasted at least 4 pairs of IGBT's but never took the device any further. Other projects are underway so I wish you all the very best in your endeavours !!

Cheers Grum.

hi Grumage,

May i ask if you can recall at which point in your circuit was the measurement taken in order to see around 10kv @84khz."I am really curious on how to obtain 10KV without using a tesla coil"
Whom knows this high voltage might be what i need.

It seems plastic sheet used in lamination is able to handle 10kv base on a HV capacitor creation video.
https://www.youtube.com/watch?v=yRzFQ_LfWco

The only thing i can visualize is the HV capacitor which you have created using 2 aluminum sheet which is separated by plastic lamination sheet and this is connected in parallel with the center coil in order to
form the L/C tank which the resonance frequency is fixed.

I got 3 high voltage probes 40kv 20Mhz,15KV 50Mhz and a 40KV multimeter probe which was delivered to me by accident.

Dear magpwr.

I used a 10 turn pickup coil made from 3 mm dia insulation around a 0.5 mm conductor wound at the base of what was around 650 turns, 32 SWG Tesla type coil.

My video thumbprint shows a wonderful picture of the signal, lower trace, all those interference patterns!!

T-1000 and I worked out that the voltage was around 10 Kv from the ratio's. Oh, and another tell tail, I had plenty of Ozone being generated!!

The internal coil ended up collapsing, I had wound it on a thin plastic former and I assume that the induction effect had warmed up the Copper coil, shrinking the former in the process. I was able to heat up a 25 mm dia Steel rod to the point of not being able to hold it within a minute or so.

The device also interfered with my video camera, first take, everything froze, second take, I managed to shoot the one posted but if you noticed the last 20 to 30 seconds the video is frozen but the audio continues!!

Cheers Grum.

"I am really curious on how to obtain 10KV without using a tesla coil"
Whom knows this high voltage might be what i need.

V.S.Belkin  - G.I.Shulzenko

Hi guys,

Have you seen new Ruslan's video? :https://www.youtube.com/watch?v=KoeA00qRA78  technically he does'n say  much,

Big Tesla was too weak on output, Akula's design was killing his diodes. Tesla on the left has to be in resonance with he grenade coil- the ferite rod between is for tuning. The  importance to understand a Capacitor can be made of coil. Importance of diodes to tap the energy . and bla bla bla 

Ha ha, thanks John.K1. Yes, Ruslan gives all kinds of info on how his devices are supposed to
work in his videos, but still we never have the specific info we really need to make a self runner.
Maybe if I spoke Russian I would have a better idea, but even fluent Russian speakers still can't
seem to figure out how to make a self runner based on Ruslan's explanations.
All the best...

The problem with plain Russian is, they are given only know-how and not just instructions for 1:1 copy. Also if someone is thinking about Ruslan is making fakes - him spending more than year of his time with spending his money on parts and equipment, soldering circuits, winding coils is at least illogical...

In middle of his last video he is talking about coil-capacitor (which traces back all to 2011 Kapanadze then Lithuanian experiment) getting charged almost instantly between Tesla coil and ground after current from Tesla coil is rectified then this charge affecting the pressure of magnetic field with induction to the load following it. I cannot disagree with that as my first Caduceus + D. Smith test back in Lithuania 2011 was made in very similar approach and we had good results.

Cheers!

Nickz or anyone?
Hey when i power up the Tesla circuit over 15-20 volt or so all signals begin to get all trashy only nice clean ringings when at lower voltage. it seems the Tesla is spewing out (emi) everywhere are you or anyone else having these issues. I have put on some more filter capacitors on the power supply and tried to move the scope farther away but no help, still having trashy signals and the Tesla ring frequency right now running around 1.25 Mhz. Any ideas would be appreciated. I do have a nice pulse and ring down at lower than 12 volt or so to the Tesla primary supply. Did ruslan use opto isolation ic or what? need a better schematic this one i have been posting and working with does not keep the signals clean also the R28 still overheating even at 2 watt and only 12 volt input on yoke i think that resistor has to be lower value.

There is a video he has with no yoke being used at all. any information on that setup? I am noticing the ozone smell it seems to be coming from the yoke and the hissing noise, sounds a little bit like an old tv station static sound but at higher pitch. I can not get the logic level signals to stay immune from the Tesla interference.  There is a video where he shows the .47 x2 caps on the output of the grenade after the bridge diodes. Do you have another schematic?

    Bat1Bobin2:
   Although there are different schematics, they all show the 0.47 tuning cap. I use more than one cap for that, but as each circuit is a bit different, you'll have to experiment a bit to find which caps work best.  Remember that it calls for a 1700 to 2000 volt (non- electrolytic cap) there.  On some videos, Ruslan uses two or more caps there.
Remember to use a ferrite rod for tuning the Kacher, as that will also change the Kacher's output frequency.
   
   If the trashy signals are due to the Kacher signals, that can possibly be controlled by using a pot on the transistor to adjust the voltage. And an isolation transformer is shown on the Kacher circuit diagram, which is used along with some caps to avoid HV from the output re-entering the input to this driver circuit. You can also try to use a separate 12v battery, (or two, for 24v), that is  isolated from the Kacher driver circuit, and from the rest of the device, to test the difference in your signals.

  The response of both the grenade/yoke circuit and Kacher circuits and their running frequency, is dependent on the voltages used, along with the tuning caps, ferrite rod on the Kacher/antenna, ground lines, etz...
  Do you use a long (37.5 meter) earth ground line, as is recommended? Is the ground wet around the ground rods. If not, then let the water hose run on the spot for a while, and really soak the ground around it.
  What frequency is your yoke/grenade running at?  Can your 10x scope probe read the Kacher frequency.
 I ask, because I need to know if I really need to order a new 100x probe, along with the new scope, or not.
So, if your 10x probe works to read the 1.2 mhz Kacher frequencies,  please let me know.

  I bought a new 12v 7ah battery so I could obtain higher frequencies from my circuits. Even to 24v, or so. As my circuits drivers really needs voltages over 15v to operate well. But, I got a defective battery, instead. I'll need to return it, from where I got it.  Minor set back.

  Bat: please upload a picture of what your current set up looks like, at this point.
 

 

This is yoke driver