Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

   TK:
    At one time I also blackened and burnt out the small neon bulb that I use as an indicator. If the HV arcs are allowed to make contact with the bulb long enough it will burn it out, even without cracking it.
   Concerning the snubbers, they seem to work OK as they are. FETs get hot possibly due to the way that I had my connections from the yoke and grenade outputs. I've now corrected that and will see if that takes care of the fet overheating issue. 
   I also have to pay about 4 bucks apiece for my IRFP260N, or I'd get them by the kilo.

  You may need to place a higher load to see if the FETs still don't overheat. I use 3 or 4 100w bulbs at the grenade's full bridge rectifier outputs, normally, or higher loads. If the Kala coil system is what you're aiming at.
   I love your cheers and applause. It gave me a good laugh...

[Hoppy]

Sounds like you are good to go again Nick. Don't forget to limit your power supply current whilst experimenting, at least until you are happy with the waveforms.

[NickZ]

   Hoppy: I will rewind my chokes as they have been frying their insulation layers, also. Thanks for reminding me.
   
   TK: I meant the Kapa coils in my last post, not Kala, but I could not correct that as there was no "modify" button, then.
  I guess that the Kapa coils set up is your intention to replicate?
  I'm also supposing that Kapa means the Kapanadze type coils, perhaps. As well as the Kapagen, etz... are take offs on it. There are lots of videos on that, but no self runners other than Tariel's original set up. Which perhaps was sold to a guy in Brazil. That guy made two videos, showing his purchased original Kapanadze coil device. So, Tariel got some money, at last... as he was not giving anything away for free, and would rather take it to his grave. Although he says that he got stopped from further development or sales of that type of system. Who knows...

[zalmoxis]

Hi!
I have found a strange phenomena with the Sergey device ..
Using a 340nF capacitor as a series resonance cap and a lower value like 68nF on the granata output  at a certain frequency ... like 19Khz or 22Khz a phenomena appears.
Using scope probes between inductor and ground and between grenade output and ground at a certain key frequency the amplitudes on both probes decrease but from tha 19Khz jumps to 40-54Khz
I've put 3 white dots on the screenshots. This screenshot is not recent , on recent experiments that "doubled frequency" sinewaves are perfect sine. This effect is not dependent by the ground wire.
Does anyone have any idea why is this happening?

[NickZ]

    Zalmoxis:
   Are you using variable trim pots to adjust the frequency and duty cycle on a TL494 IC circuit?
  If so, you may have damaged or partially burnt them out at certain points on the pot(s).
   
  That is one of the problems that I'm dealing with now. At full duty cycle my 20k trim pot works ok, scope signals are stable and I can vary the frequency no problem. BUT, trying to adjust the duty cycle makes the signals on the scope go haywire.
This was caused by me reversing the input connections by accident, which damaged the 20k pot, along with both (12v and 15v) voltage regulators as well as some of the regulator's filter caps.  So, I'm fixing that problem now.
  Perhaps you have similar "phenomena".  If so, maybe check your trim pots.
  Let me know if that helps to find the problem, or not. 
I've been getting to know my TL494 circuit, fet drivers, and such, with their problems and strange effects more intimately, now.
Trying hard not to pull my hair out by the roots...