For the ground line to earth, seams like using a 100ohm resistor, a diode, or capacitor, may all be doing a similar purpose.  This all needs to be tested further.

  Urfa: Is that last picture of your grenade/kacher coils, of your current device ?
  If so, why don't you try to see if it will self run, now?  As that is the most important thing.

  For the ground line to earth, seams like using a 100ohm resistor, a diode, or capacitor, may all be doing a similar purpose.  This all needs to be tested further.

  Urfa: Is that last picture of your grenade/kacher coils, of your current device ?
  If so, why don't you try to see if it will self run, now?  As that is the most important thing.

Hi NickZ.

That is not picture of my current device.(Picture name:Kacher_parameter3) I found this picture on internet. I used it only write for information.
Really I don't have free time for try to see if it will self run. I am working on a Motion simulator and it takes all my time.But it will be finished in a short time.When my motion simulator is finished I will take the my all time to for Akula Device.

You can connect other side of the bridge rectifier to the output. But this is not necessary. If you want to see the voltage you can connect other side to output as I drew.  "is there any diode more between grenade line and ground?" Jeg has given answer your question. Capacitor is actually a diode.
And you must connect plus or minus of the bridge to the other side of output. Not connect both to one side or not connect plus to one side and minus to other side.

Urfa no words to thank you man..

Hi Hoppy
You can also try to unwind some turns from your inductor like 24+24 or 25-23 and see the results. A good method is also to add few turns of a free end wire over your inductor. By giving some capacitance or inductance this way, you bring it where you want. But we have to admit that Ruslan's coils tuning is far from an easy job.   

Guys, re-viewing the schematics on the previous page,  it is not exactly what Ruslan said.  He was connecting the 6th end directly to the ground and the first end he put across the capacitor to the TV choke.

John, I suggest you not taking anything for granted! Ruslan changed his explanations many times. Anyway. The most appropriate connection of ground is at the thin side. HF have to reach ground from the shorter path which has the least resistance. 

This is an initial test of putting a 15W light bulb across the grenade coil output leads and driving
only with the kacher driver.

This testing was done with no tuning of the kacher frequency yet. May give better results once I
tune to a more optimal frequency.

The bulb doesn't glow unless earth ground is connected.
The bulb still glows, but glows less brightly, when only one lead from the bulb is connected to one lead on the grenade coil.
This is similar to what John.K1 reported.

My kacher driver is drawing about 0.9A @24V with the 15W bulb connected across the grenade coil,
and drawing about 0.5A when I disconnect the bulb from the grenade coil.
Kacher frequency was about 1.6MHz in this test, but as mentioned this is with no tuning at all yet
for an optimal frequency.

If I connect earth ground, which is also connected to one lead of the grenade output, to the supply negative
of the kacher driver, output voltage of the tesla coil drops quite a bit, as does the current consumption of the kacher driver.
Placing a diode in either direction between earth ground (which is connected to one lead of the grenade coil) and
the kacher negative does not have any effect. I am using a bench power supply however so a ground loop back
to the power supply may be affecting results. If I connect earth ground to the kacher driver negative only
and not to an output wire on the grenade coil, it drops the current consumption of the kacher driver a bit.

The bulb is glowing brighter than it appears in the attached pictures.

I also tried to take a picture of the arcing to a screw driver from the 'antenna' coil, to try to
show the color of the arcing, but it didn't come out well. Maybe I need a shorter exposure time.
I don't know much about photography. The arc color actually has a bit more reddish color
in it than it shows in the picture, but the reddish color is getting overwhelmed in this photo
by the brighter violet color.

All the best...

Good job!    Now to sort out how to make it even more briher with granade on the ground.  As you say everything drops down. I tried to calculate he frequency with the added ground wire and from my previous 1.87MHz it should be now 1.38 MHz.  I have it tuned to that frequency but no effect so far.  I only registered you get a little bit more if the Kacher's emitter's ground is the common with that on the grenade. ( I used separate before)   
I also added some more turns on that ferite rod, but again I do not see any difference on the output.  This is pain in an ars   Need to more work on it as I believe in it

Hi John. I get no glow on the 15W bulb unless earth ground is connected to one lead on the grenade coil.
With the earth ground not connected to the kacher MOSFET Source (supply negative), I get much higher
output voltage on the tesla coil.
With the 15W bulb connected to the grenade coil and lighting up, kacher driver is 0.9A @24V.
With the 15W bulb disconnected, 0.5A @24V.
Yes, I only have a small heatsink on the kacher driver, and it gets hot fairly quickly. Need a
better heatsink and a fan for continuous use.

All the best...