Hi Nick. Sorry to hear about your 24VDC power supply failing.
You should have some sort of low pass filter on the output of your
power supply to help protect it. This means at least a large electrolytic cap in parallel
and an inductor (choke) in series with the V+ line at the power supply output, and another
large electrolytic cap in parallel after the choke. This is called a "Pi" configuration of low pass filter.

Also, when using the kacher/tesla coil, make sure the negative terminal on the power supply
is earth grounded as well. I have found that this can help protect the power supply.
If you are already using a low pass filter on the output of your power supply, then I
am not sure why your power supply blew. Grounding the negative terminal on your
power supply or battery is a good idea I think however.

I went with the non-dissipative snubbers because they keep the switching spikes down
below Vds max for my setup, and because they don't waste as much power as RCD snubbers. 

My own take on these Akula devices is the PWM driver should not be supplying any much more power
than it takes to maintain resonance in the series resonant loop. The 'OU effect' should be
what is supplying all the excess power to the load. Therefore, if my take on this is correct,
the PWM driver should not draw even more power once you start connecting different amounts
of loads, except maybe for a relatively small increase in power dissipation by the PWM driver.
If anything, I think the loading on the PWM driver should decrease if you are hitting the OU effect.

  Itsu and Void:
  Ok, thanks for your comments.
  So, I opened up my PS, and found a 1/2w resistor with it's wire ends all rusty, on touching it, it broke loose from the pcb.
  I'm in the process of replacing it, to see if that is the problem, as it was really in bad shape and does not conduct, at all.

   I'll show what the signals look like when I get it all working again. The main thing is that my fets are running cooler, regardless of the spikes. That was my main concern, as I can control the spikes, but not the heating of the fets. Now the fets seam to be working better and staying within they heating limits. Better than my two previous snubbers. I do still have the RC snubbers capacitors installed but without their resistors. As suggested by Itsu, to control the ringing, but may end up reinstalling the resistors, if needed.
   I do have filters and choke, between my PS output to my yoke, TL494 and TC4420 board, as can be seen in the last images that I posted.
  The 200v plus spikes are the reading on my drains, using only a 100w bulb, but having higher voltages when using higher wattage bulbs. I don't know why that is, as it should be the other way around, normally.
   I did come across the RM signal, at one point, while testing using the laptop adapter. But, also a bit of the chaotic mode with it. Need to be able to get the RM mode without the chaotic mode. But, they seam to be partners in crime. I'm trying to separate the two, as I was able to do it before.
  I do have two 12v 7ah batteries, but one of them is being used for my Pc back up power source. I may have to pull it out of the back up unit, and try both on the device input. But, that is my last resort. First I'll try to fix the 24v PS.

  Itsu can you please test to see if you are getting any feed back current from the snubber circuit back into your PS.

  I think that what I have may just be a problem with rusty PS components, and not a problem with the snubber or the device.
 As the device seam to be working ok now, when using just the 19v adapter. But, perhaps I need to place a diode at the PS, as well. But, I don't have a diode installed now because they always got too hot.
 

Are any of you aware of a statement of Tesla saying any thing Electrical or Electronic has electron losses and cant possible produce any excess energy and this also applies to HF Frequency re his published experiments and also Peter Linderman some years ago said only mechanics can produce excess energy es ist gut ja

This might need some thinking about.

Itsu and Void:
  Ok, thanks for your comments.
  So, I opened up my PS, and found a 1/2w resistor with it's wire ends all rusty, on touching it, it broke loose from the pcb.
  I'm in the process of replacing it, to see if that is the problem, as it was really in bad shape and does not conduct, at all.

   I'll show what the signals look like when I get it all working again. The main thing is that my fets are running cooler, regardless of the spikes. That was my main concern, as I can control the spikes, but not the heating of the fets. Now the fets seam to be working better and staying within they heating limits. Better than my two previous snubbers. I do still have the RC snubbers capacitors installed but without their resistors. As suggested by Itsu, to control the ringing, but may end up reinstalling the resistors, if needed.
   I do have filters and choke, between my PS output to my yoke, TL494 and TC4420 board, as can be seen in the last images that I posted.
  The 200v plus spikes are the reading on my drains, using only a 100w bulb, but having higher voltages when using higher wattage bulbs. I don't know why that is, as it should be the other way around, normally.
   I did come across the RM signal, at one point, while testing using the laptop adapter. But, also a bit of the chaotic mode with it. Need to be able to get the RM mode without the chaotic mode. But, they seam to be partners in crime. I'm trying to separate the two, as I was able to do it before.
  I do have two 12v 7ah batteries, but one of them is being used for my Pc back up power source. I may have to pull it out of the back up unit, and try both on the device input. But, that is my last resort. First I'll try to fix the 24v PS.

  Itsu can you please test to see if you are getting any feed back current from the snubber circuit back into your PS.

  I think that what I have may just be a problem with rusty PS components, and not a problem with the snubber or the device.
 As the device seam to be working ok now, when using just the 19v adapter. But, perhaps I need to place a diode at the PS, as well. But, I don't have a diode installed now because they always got too hot.

Nick,

ok,  so (hopefully) it was coincidence that your PS broke down.

I will see if i can check for current being returned to the PS, need to modify the connection a bit.
Guess it will show current, but that is the whole point of this snubber circuit and the PS with its capacitors should be able to handle that.

Itsu

Soliman,

thanks for the info.

As i have no kacher i cannot check this, but perhaps others can.

I see you have different duty cycle values for your gate signals (26.1% and 34.4%), probably because you can independently delay them via your TC4093 chip.
Be aware that probably nobody else here can do that.


Itsu

A simple way of correcting this would be to add a 503 20 turn trimer between the TL494 output pin (one on each side and the input your buffer driver  (if it's a Schmitt input) and a 222 ceramic cap also on the input to zero volts common you should then be able to get your new pulse width value. It is done like this on the Alex Sergey circuit. but his driver is the IR210 witch also has this input.

AG

Hello people
I want to report to you something I have found.
1. find the resonant frequency
2. Reduce the duty cycle until you find a very low sound, something similar to that which is frying chicken. In the jiro is very sharp, rotate slowly (remember to start with duty cicle near at least 40%) avoid heating.
3. When you find this sound, leave it there, turn on the kacher. And you. you will see a small effect, that when you pass the hand over the circuit, you will see how the voltage and the whole system is affected. I found a voltage increase of 50 volts up to 70 and 108 volts, try to do this test and tell me what you think.
this is the screen shown in the gates
in the D there is a lot of noise

Spacial Electromagnetic distribution in _{Near Field} https://en.wikipedia.org/wiki/Near_and_far_field
changes due to _{magnetic, diamagnetic, paramagnetic} bodies  in near field. https://nationalmaglab.org/education/magnet-academy/watch-play/interactive/diamagnetism-and-paramagnetism
Please note   we are talking about changes  or motion   here . After change is made  the new  altered  form of Spacial Electromagnetic distribution in Near Field is  observed .

Human body   has  capacitive properties ( e.g electrostatic discharges and  accumulation)
In 3D space we can change  _{properties of impedance} in any charged body  or circuit  by motion = rate of change  https://link.springer.com/article/10.1007/s10832-007-9376-z
We can measure any state of time frame change  and its new form.

3. When you find this sound, leave it there, turn on the kacher. And you. you will see a small effect, that when you pass the hand over the circuit, you will see how the voltage and the whole system is affected. I found a voltage increase of 50 volts up to 70 and 108 volts,

Dependency between _{current and voltage stands} about power. http://www.sengpielaudio.com/calculator-ohm.htm

The  output power can not!! be  higher than input  power delivered   , and if it is than  we entering into forbidden state,  violation of  laws of thermodynamics .
 e.g "transformations are so statistically unlikely that they are effectively_forbidden" https://arxiv.org/abs/1305.5278 , https://physics.stackexchange.com/questions/217792/how-does-the-second-law-of-thermodynamics-forbid-the-possibility-of-perpetual-ma

However in 3D space we may expect energy conversion environmentally   dependent  in means  of interaction with 3D space mechanisms of nature .

What I found interesting  here  is sound (the longitudinal wave.LW) https://en.wikipedia.org/wiki/Longitudinal_wave
_{Sound is responsible for sonoluminescence ( at temperatures 10 times higher  than the surface of the sun. But sound caused by electromagnetic field of the coil is now for us
the direct conversion of quantum physics based phenomena to classical physics processes.  And now we feel comfortable  knowing that  different media can interact  with} LW
_{and  cause not only change (in length with elasticity) of  e.g ferrite but  possibly change of temperature due to  trapped cavities and its content.}

By that we conclude changes of  impedance in 3D space when " you pass the hand over the circuit"
Secret of  Russian  Ferrite  made me to spend "tons of money" on scientific laboratory base
All of the so called successful copies of  TK device ( SR, Akula, Ruslan...etc.) have  characteristic sound coming from ferrite  ( and/or vibrating in 3D space  coils/structures due to electromagnetic excitation).
Does it ring the bell?

Wesley

  Wesley:
  You mentioned: "All of the so called successful copies of  TK device ( SR, Akula, Ruslan...etc.) have  characteristic sound coming from ferrite  ( and/or vibrating in 3D space  coils/structures due to electromagnetic excitation).
Does it ring the bell?"
                       end quote.

    What "bell"
   That is not what I've seen on Ruslan's devices, nor on Akulas devices. NO bell ringing sound heard when self running.

Bell  means expression https://idioms.thefreedictionary.com/ring+a+bell

ring a bellFig. [for  something]  to  cause  someone  to  remember  something  or  for  it  to  seem  familiar. I've never met John Franklin, but his name rings a bell. Whenever I see a bee, it rings a bell. I remember when I was stung by one.

Wesley