Kapanadze Cousin - DALLY FREE ENERGY

[Void]

So your Tesla coil resonates on 1.38MHz, the full duty cycle wavelength according to calculator in http://www.procato.com/calculator-wavelength-frequency/ is 217.24091159420288 meters and the time taking full cycle is 724.638ns (taken from http://www.sengpielaudio.com/calculator-period.htm )
The 1/4th of signal length would be 181.1595ns so the signal with duty cycle of that time would give you free oscillation on Tesla coil resonant frequency.
As the test involves forced pulse with which we want it bang on half cycle and cancel out on the other half the signal length of 362.319ns should enough.

If a tesla coil is operating at 1.38 MHz using a 'kacher' driver circuit, the tesla coil is already (typically) 
operating at (roughly) its 'quarter wave resonance frequency'. This means that the length of wire used in the tesla
coil secondary winding is roughly one quarter the length of the full wavelength of the frequency the tesla coil is operating at. Adding
top loading to the tesla coil makes it operate at a much lower frequency, so top loading throws calculations off
a lot more.

If using a pulse generator to drive a tesla coil, driving the tesla coil with a pulse width set to one quarter of the operating frequency period
would not seem to have any real advantage, although I have seen some interesting effects where I 
sometimes see higher output voltages on a tesla coil when I narrowed the pulse width well below 50% duty cycle.
Sometimes you can get good output on a tesla coil driving with only a 10% or 15% duty cycle, and the output voltage drops
if you increase the duty cycle higher than that. I think using a narrow duty cycle pulse width is worth experimenting with (if using an adjustable pulse driver),
but I personally haven't seen anything special with using a duty cycle that is exactly one quarter of the full wave period. That sounds suspect to me.

[itsu]

T-1000,

The blue is on the gate of driving MOSFET.

ok,  got that.

The coil output in the video was the transformer output....

still don't know what you mean there, is it the grenade?  And if so, i never have seen my grenades output to be that high frequency (300KHz) and
tapering off in amplitude like that (its more the behaviour of my pulsed Kacher output).

I can measure the kacher directly with my HV probe (influences it somewhat) or like you mention with a nearby pickup probe.
That is what i did in the latest video's.



I have to agree with Void's comments about the kacher running already in 1/4 wavelength mode.
I guess i presently have a kacher driver duty cycle of about 0.1% (400ns wide), so way lower then the mentioned 10 or 15% or 1/4 or 1/2 signal length.

Itsu

[T-1000]

still don't know what you mean there, is it the grenade?  And if so, i never have seen my grenades output to be that high frequency (300KHz) and
tapering off in amplitude like that (its more the behaviour of my pulsed Kacher output).

The transformer in the video had bucking coils in the primary and secondary - https://i.ytimg.com/vi/4Ucgue7eH_4/maxresdefault.jpg
on the transformer E core. The secondary coil had capacitor attached for freewheeling LC.
This is why he could run it on the higher frequency than you can expect.
For the Tesla coil in Ruslan's case it is similar case with top load coupling with grenade coil and ground termination over capacitance. So we can try to use it for the same spike generation as you get in nanosecond pulse generator.

[NickZ]

  And in the mean time, Ruslan has been working overtime.
  Dally- re revived:  Is it worth the effort?

  https://www.youtube.com/watch?v=OwKe6jkTY3o

[Tomtech29]

  And in the mean time, Ruslan has been working overtime.
  Dally- re revived:  Is it worth the effort?

  https://www.youtube.com/watch?v=OwKe6jkTY3o

hello
Nickz
as you can see it is a rather praise instead of maintaining the level of education. He says it's for those who do not believe that it works
He is "good"
-until then nothing will be made in the direction to reveal a bit of the mystery of his efforts are worth nothing!
(What would be the correct regimen and good intentions)?
(a piece of history forgotten
https://www.youtube.com/watch?v=zO_mG2ajJpA
how it will be this time?