Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

Dear Hoppy,

Well it looks like you have "put it to bed" I just wonder if it is worth me rewinding the coil??

For what it's worth I have had the schematic translated, see below. Please note my freind could not see the correct turns so he put 30 not 80.

Cheers Grum.

No not to bed quite yet. I'll leave it wired-up on the demo board in case somebody else has a breakthrough with this circuit - or should I say breakdown! 

[NickZ]

This does not look like a self-runner as he had a bench PSU supplying power and one lead of the lamp disappeared down under the bench!. Do you know what he was demonstrating?

Might be the ground connection, as he already has a power supply in site on this one.
  Which all leads me to believe that he was not the inventor of the akula devce, and that akula may not have been either. What a fun riddle this is... good thing we have a house detective.

[guruji]

The Tesla coil building rules still apply here.

The choke is your Tesla secondary, the coil wire providing current is your 1/4 length of choke with idealy 4 times wider wire for equal mass. We are dealing with mechanical(electrostatic) principles here.

Hi T1000 do you mean L4 should be 4times more lenght? In the vid the guy used thinner gauge.

[Hoppy]

   Might be the ground connection, as he already has a power supply in site on this one.
  Which all leads me to believe that he was not the inventor of the akula devce, and that akula may not have been either. What a fun riddle this is... good thing we have a house detective.

So if we don't know what it was all about the vodka party is a bit premature. 

Trying to attach the correct names to these various offerings is becoming somewhat problematical. How about a coding system for easy reference e.g., RV1 denoting Russian video 1 and RS1 denoting the associated circuit schematic. 

[TinselKoala]

OK, here are the results from different waveforms, DC offsets and methods of supplying the primary of a rectified Flyback Transformer (10:1 step-up turn ratio), in the configuration often used in Kapanadze's devices as well as Guest/Chubinadze's, etc...

It is obvious that a switched voltage source supplying the primary, produces the highest output voltage at the final capacitor and spark-gap.

As I said in the postings, it is the _fastest rise and fall times_ that produce the highest voltage rise in the secondary. Your figures show that the DC offset doesn't matter, just as I said.  A Royer oscillator driver produces a sine wave stimulation and so does not attain the highest voltage possible. But it transfers power effectively, which was the original issue, I believe. It is also robust, has low component count, and the active elements remain cool.

A proper square wave driver will have more components, will require things like mosfet driver chips, diodes to shunt spikes away from the transistors, etc. none of which are needed for a simple and powerful Royer oscillator.

Now, let's see a _real_ minimum component count square wave switcher compared to a Royer oscillator driver in actual performance, not from a perfectly square _simulation_ input waveform. In fact, perhaps you could just demonstrate your square wave switcher making flyback arcs, as I have done for my ZVS driver. Let's see the power thruput at, say, 12 VDC input.

Does a 30 v p-p sine wave drive have the same power as a 30 v p-p square wave?