TopRuslan

[apecore]

Someone drew a diagram as you can see in the video.
It's definitely not 100% maybe 60% or less

Well can we say its legimit?
According the explanation by Ruslan in the vid it looks like it is.
It seems that the whole grenade and extra coil are completely isolated from the kacher part.
Unknown is als the kacher mode... ( pulsing or continously?)

C2 is the tuning cap ' big coil'
No sinewave inductor loop... or is the series cap on the board?
Did Ruslan added windings at the pushpull tranformer?... it looks like ordinair 220v/12v transformer. With extra winding

Should not be to difficult to make a setup,... he explained the working order clearly.
1st Grenade coil
2nd puls kacher coil to obtain resonance frequency grenade
3rd make extra coil (i gues length = additional length needed for groundline connection within 1/2 wave node)
4rd fix all wires and coils in order not to influence near field capacitance... (resonance fixed)
5th optimise kacher secundairy and topload coil for final tuning at grenade resonance.

Unknown as mentioned, pulsing kacher?
Seems there is an additional ic on the circuit board... also on the wallpaper in the vid it appears logic is used... so must be for pulsing.

Grt,
Ape

[NickZ]

   apecore:   I would think that Ruslan is showing a controllable Kacher circuit, as the simple Kacher is connected to the earth ground at the transistor negative rail, instead.   After a while, all the new kachers circuits were the controllable type connected to the earth ground at input to the Kacher secondary coil.
   NickZ

[Dog-One]

My interpretation, please correct me wherever I am wrong here:

The grenade coil is basically a counter-wound coil having nearly zero
inductance, where a portion of it has another separate layer overwrapped
acting as a transformer section, a primary winding.  The bulk of the
grenade coil has another layer wrapped around it acting as another
primary.  The first primary connects to the output transformer of the
push-pull.  The second primary connects to the output from the small
Tesla coil by way of shielded coax cable.  These two inputs into the
grenade are mixed together in some fashion I don't fully understand
at this time.

The small vertical Tesla coil appears to be driven by a little tan board
with a single heat-sinked transistor.  Also has a single red LED on it
to indicate whether the system is powered or not.  To me this looks
nearly identical to a Slayer Exciter board.  Timing for this board may
come from the push-pull board or it may be independent and just
operate in a typical self-oscillating mode.  Not certain, but Ruslan
infers that's not all that critical and is the part you do last once all the
other major stuff is working right.

The push-pull transformer is driven by the more complex blue PCB.
The push-pull transformer looks like a factory E-core transformer
but has some spacing added--there is a gap between the two core
halves.  Have no idea what the turns ratio is, but is used as a
step-up.  The gap is there to loosen the coupling between primary
and secondary windings that each sit on a separate half of E-core.

We also have the buck converter module spoken about previously
that supplies the main DC power to the push-pull and Tesla boards.
Somewhere in Ruslan's box, there must be a rectifier prior to the
input of the buck converter, since this is a DC to DC module.  Based
on placement of components, I wouldn't think it is too far away from
the module.  With the relay on the blue PCB, the diodes may all be
there as well.

Lastly is the extra coil added to extend the length of the ground
wire.  It must have thick wire because it carries all the current flow
of the ground wire.  It also has to resonate at the same frequency
of the grenade coil, so its designed after the grenade coil is fully
specified.

Ruslan speaks of resonance, but clearly states he is not talking about
LC resonance.  He is talking about a natural frequency inherent within
the coils--a frequency they prefer to oscillate at when stimulated.  He
states this natural resonance needs to be synchronized within the grenade
coil and this extra coil.  That must be established first.  Lastly the Tesla
coil is tuned.  Probably would be a good idea to refer to Dr. Stiffler's
mechanism for determining a coil's self resonance.

The Tesla coil has two major tuning elements.  The turn-count on the
secondary and the capacitive load on the secondary.  In this device the
capacitive load of the secondary is adjusted by the coax cable connected
to the secondary and wrapped around the grenade coil.  It appears to be
a very sensitive adjustment, too much or too little capacitance and the
system cannot function.


The bugger in all this is that it doesn't seem that difficult on the surface.
I'm not sure why one of us hasn't been able to get something to run
by now.  It has to come down to tuning and the fact that none of us are
doing it properly.  Ruslan is a professional in this area and we need to
learn how to do it the same way, then I think we can make some progress.

[r2fpl]

My interpretation, please correct me wherever I am wrong here:

the Tesla coil must be very stable. When I did the tests only a few times I was able to make the frequency stand still and not float. Of course, the circuit was with kacher. Therefore, a capacitor is needed on top. Ruslan shows an aluminum ball in the video and says that it did not fit well. A coil of coaxial cable has a much larger capacitance than a sphere of aluminum and this is the reason why coaxial cable is used! An additional function is balance as Ruslan says.
When the tesla coil has a capacitor on top then it works stably! This may even be the only reason for this coaxial cable coil.

[apecore]

My interpretation, please correct me wherever I am wrong here:

The grenade coil is basically a counter-wound coil having nearly zero
inductance, where a portion of it has another separate layer overwrapped
acting as a transformer section, a primary winding.  The bulk of the
grenade coil has another layer wrapped around it acting as another
primary.  The first primary connects to the output transformer of the
push-pull.  The second primary connects to the output from the small
Tesla coil by way of shielded coax cable.  These two inputs into the
grenade are mixed together in some fashion I don't fully understand
at this time.

I think regarding the grenade coil your not right.
In the early days i spent many hours on the grenade configuration, low inductance (<100uH) is only achieved by counter wind all layers. I probably configured all possible configuration..Where i concluded that it is impossible to make two grenade's identical.
So when not wound every layer opposed to the previous, this automaticaly results in a low resonance frequency. (<1.5Mhz)
Not mention the differences in wire insulation thichness or tightness of winding
When configuring layer 3 to 6 in a different way it will resonates around 1 Mhz. This is why many of us with large kacher secundairy coils see some effect, due to frequency matching.
This aspect of grenade configuration is a blackbox, this is also why he stated that it isnt possible to replicate due to the fact that it is impossible to make two identical grenade's.
Resonance frequency will always be different.
I created a grenade which is completely non inductive wounded (5uH).. the examples given online about how much wirelength is used in first 2 layers and layer 3 to 6 is not achievable.
Every layer on top of a previous layer needs more wirelength, so it is not possible by this to cover every winding by a counter winding in the next layer. Leaving uncovered windings ( like the first or last of a layer) will automaticaly gain self inductance... resulting approx in 180_200uH.
The reason i spent so much effort on grenade config is that i wanted to have a grenade with  double resonance LC and wavelength. VF=1    (velocity factor).
This will excite the standing wave uppon eachother... there are patents about this subject


In earlier vids Ruslan mention that the kacher needs to have the same resonance frequency as the grenade, kacher only would lite up a 25watt bulb. This is correct

There is no wire connecttion between kacher ( topload) and grenade, both can ve considered as capacitor plates. In which the inductorloop normally creates a magneticfield.
Again grenade is a blackbox because we only see a diagram and lots off insulation tape around it.

Grenade swings the standing wave... as stated by Ruslan... kacher is infact the exciter.
Your correct by mentioning the groundwire coil must have specific wirelength in order to match frequency with wirelength (1/4 standing wave) of the grenade..
Kacher wirelength is not critical.

Looking closer to the circuit board there a timer (i think a SG3525) , a FETdriver some voltage regulator to220, and some filter parts.

Last but not least, Ruslan mentioned wirelength from bulbs may impact mode of operations. This again is all about a standing wave in grenade.

Grt,
Ape