Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

   Geo and All:
   That video has been removed.

   I've been without a working computer for the last couple of weeks, as Pc parts are not cheap nor easy to find here, but I have been following along on this and other threads, on my cell phone. And, My daughter just let me borrow her laptop for a couple of days.

   A big issue that I still face on the round core/MRG circuit, is with the overheating of the Mosfets. Which I would like to be able to control down to a working temp. But, When drawing lots of battery current to light up several or even just one 100 watt bulb, the fets could boil water in 5 minutes.  The circuit works fine at 10v input, but not at 12v or higher voltages.  Using the RMG cores has not really helped with the heating issue. Using the flyback cores instead, like you have, does not provide for as much output, as compared to using the yoke/mazilli crt direct to the bulbs. But, the fets can't take it, even on a heatsink and using a fan.
  I'm still working on the feed-back path, but I don't know which are the right caps to use, and can't just go buy up a bunch of them to see which ones work, etz....
  Anyways, I'm still at it, even if slowly,   Not easy....   
  As always, any ideas are welcome.
                                                    NickZ

[From other Planet]

@NickZ are u using antiparallel Zener diodes for protection between gate and Source? If so ,what voltage ratings? I had same heating problem (of MOSFETS, not of the ZENERS) with akula device nr.1 when i was using 12v zeners. After i changed to 18v ones, the extreme heating of Mosfets dissapeared. Cant say why though. But be careful, can only use the 18v ones if the gates of ur MOSFET can be charged up to 20v or more. Look in the datasheet of them. May i ask what type of MOSFETS u use?

kind regards,
From other Planet

[NickZ]

  The Fets that I'm using are the IRFP260N,  and the zeners are still the smaller 12v ones, which were the only ones that I could get a hold of.  As I'm not using any more than 12v input, the small zeners should work, ok, but there is still mayor heating of the fets.  I know about the 5 watt zeners, but I have not been able to obtain any here, yet.
  Other Planet:  Have you been able too ''brightly light" several hundred watts worth of bulbs with your set up, for several minutes, and still not notice too much heating of your fets?
I will try to find some of the higher wattage 18v zeners, as soon as I can.  Thanks for the reminder.

[skribat]

Hi there guyz



It is Self sustaining, without any grid power nor battery, simple feed back.
build by GTA1183.
Seems very interesting how this circuit works But as I see it's all about resonance again, with the right waves.

https://www.youtube.com/watch?v=efEgXnFxvJ4

enjoy.





  00:
nice vid about  Tesla's Magnifying Transmitter style, The diagram could help alot for some further experimenting.

VIDEO REMOVED .. THEY DON'T WANT US TO SEE IT NOW   DID ANYONE DOWNLOAD ?

[From other Planet]

  The Fets that I'm using are the IRFP260N,  and the zeners are still the smaller 12v ones, which were the only ones that I could get a hold of.  As I'm not using any more than 12v input, the small zeners should work, ok, but there is still mayor heating of the fets.  I know about the 5 watt zeners, but I have not been able to obtain any here, yet.
  Other Planet:  Have you been able too ''brightly light" several hundred watts worth of bulbs with your set up, for several minutes, and still not notice too much heating of your fets?
I will try to find some of the higher wattage 18v zeners, as soon as I can.  Thanks for the reminder.

Yes im also using 12 volt for driving the gates. Switched voltage up to 150 volt, power up to more than 300watt (distributed on 2 Fets). I use 18v 1,3 watt Zeners, 5 watt ones might be better. No, after changing Zeners my MOSFETS not get very hot anymore, maybe warm till little hot. But, like akula i use big CPU heatsinks+ fans for each to cool them if necessary. I looked in IRFP260 datasheet, says 20v maximum gate voltage, same like my IRFP460's. Attention: When using chopped DC as INPUT source for FETS, the IRFP460's start to die from a voltage of more than 100v, in spite of protection with zeners, varistor and snubber circuit on the akula nr.1