TK,

i did ask that same question then myself here:
http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg475064/#msg475064

But for my understanding, your grey area is not really our problem, the problem is the light blue area where the MOSFET is already on while its gate is off.
Do i understand correctly that the fact that yellow MOSFET is on (light blue area) is caused by the grey area effect caused by the other MOSFET?

Again, for an answer, you need to follow that discussion, i was happy with the answer provided by verpies in this specific push / pull situation.

Itsu

May pushpull transistors also not hot on resonance or on small current without snubbers. Or maybe your transistors is fake from aliexpess maybe?

  How about at resonance with a higher current and several hundred watt loads?
  The FETs stay cool with no snubbers on??? 
   Maybe you can make a short video also showing the bulbs being lit up, and some scope shots.

   I'm interested in using no snubbers also, but, I still don't understand how Stalker can do so, while showing drain voltages over 250v, at 41to 45% duty cycle. And wth NO snubbers on. How does he do it?

hi,
hire is my video
pushpullstalkernotgethot.
https://www.youtube.com/watch?v=vk0-rdlupxA&feature=youtu.be

Absolutely stunning !Explain how you were able to have puresharp square wave input to mosfet gate when the output is loaded ! This is very important.

hi,
hire is my video
pushpullstalkernotgethot.
https://www.youtube.com/watch?v=vk0-rdlupxA&feature=youtu.be

Nice push-pull demo
In addition to control of duty cycle you can try add additional delay chip for each channel. Then tune down duty cycle of each channel to be less than 20% and align it to series resonance. Then you can play with Tesla coil and try to mix that adjustable power on the yoke wih the Tesla coil output. Then see if you can achieve frequency mixing in same fasion as GeoFusion did...
The amount of power going to the series resonance directly relates with the electric field power coming from the Tesla coil in order to achieve effect.

Cheers!

   Soliman:
   Thanks for showing your device and making the interesting video.
 
    However, as you are NOT connecting the 28t yoke coil to the 168t coil on the grenade, and you are just running from the 3t coil, your output is very low. And, therefore you can barely glow the 2 200w bulbs. Also your wattage at the output must also be  very low. So, perhaps that is why your Fets don't get hot.
   
   So, what happens when you turn on the Kacher??? Do you have any additional light at the bulbs.  NO?
That probably means that you are not in resonance, and every time you change the bulbs, the resonant point changes and needs to be readjusted. Or not?

    To make it a comparable test to how the circuits that we are building work, it would be good to have the connections the same as how we have it,(28t coil). Showing some scope shots of what happens when the 28t coil is also connected, and the Kacher is ON.
   By reducing the duty cycle you are also reducing your output at the load. And, I doubt that the system would self run, with that low an output.

    Below, is a picture of your bulbs, and a picture of your voltages. Showing the low voltage output, and low lumin levels of the 2 200w bulbs.
   You may have 300v showing on the scope at times, like Itsu mentioned, but there is very low current going through your system as seen at the output. So, that may be the reason why your Fets don't get hot... I think.
 
   Below is the Stalker TL494 and the 4420 driver circuit that I'm using. It is a more recent circuit, and much simpler as well.
Notice there are no snubbers. And he uses IRF3205 mosfets, with lower resistance, than the IRFP240N.
 I replicated that circuit, but my fets, (IRF240, or snubbers) do get hot.
   The snubbers circuits that I've tried on so far, are having their resistors getting too hot, also. 
   So, I'm building the non dissipative snubber circuit next, as there are NO resistors to get hot.
  We'll see it goes...

this is de correct circuit.
I am sorry

Soliman,

thanks for the screenshots, it shows that the TL494 outputs a (max.) 43% duty cycle signal as expected and that the TC4093 chip is able to
crank up (delay) the duty cycle till almost 50%.
Be aware that any further setting will cause the both MOSFETs to be active at the same time causing very high current to flow.

It could be that this higher duty cycle has some influence (smaller) on the created spike.

I do notice your scope is set to AC coupling causing the signals to be "offset" to the middle.

Also now the frequency is 16.5Khz which is more as to be expected for series resonance of the LC circuit.

Itsu

Soliman,

It could be that this higher duty cycle has some influence (smaller) on the created spike.

Itsu

Yes, this may be the case and could be important both for spike reduction and correct switching to meet self-running requirements , thus the extra circuitry employed. I'm dubious about the real need for power hungry snubbing, given that Stalker's circuit shows none. He does however show fast protection diodes to compliment mosfet body diodes.