Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

  Interesting, Hoppy,  but, how bout a pic or two?  Obviously tuning has a lot to do with this.
 
   I wonder why GeoFusion is not showing the 2kw output that he is telling us about, and shows 300 watts of what looks like not fully lit bulbs, instead. At least compared to the bulb on his wall. Would love to see 2kw, or more.
 
  But, even your 60 watt brightly lit bulb is more that I currently have to show. If you can feed it back to input, and get it to self run, we can light that cigar, (that I'm still holding out for)  and have a toast or two, as well.

  Anyways, crossing my finger and toes... waiting for the "real thing". So, I can get back to useful replications, as I'm done making devices that don't work. At least I hope so.

I'm in the middle of house decorating at the moment but will post some pics when I can get back to the bench.
I think GeoFusion has raised an important point about the need for his ferrite core to be split. Even with my 'open core', fully inserting my four 100mm x 10mm ferrite aeriel rods will very suddenly cause my oscillator to whine / whistle and pass a heavy current through the primary which suddenly increased lamp brightness to a dangerous level before causing oscillations to cease! This shows the importance of having current limiting or at least suitable fusing on the source supply whilst experimenting. I suspect that very high permeability and expensive ferrite cores may not be necessary, which is possibly why several schematics have called for moderate permeability ferrites around 2000 mu.

Nick, try winding a 1:15 ratio, say 10 turns bifilar primary (10 + 10 turns centre tapped) and 150 turns secondary winding on your split core TV ferrite, with the primary driven from a robustly built mosfet based Royer oscillator.  Split both the bifilar wound primary (thick wire) winding and single strand secondary (thin wire) winding into two quadrants each, so that there is a balanced wind around the core. This will hopefully get you started by lighting a 60W bulb brightly and may work better than a cylindrical 'open core' wind.

[T-1000]

Hi Grum

Yes the Primary Coil with center tap is wound the same direction,from left to right , CW to CCW one coil.
and Secondary Coil is also wound the same direction as the primary.
Primary has 27 winds of 2.5mm² Insulated wire  and secondary has around 35 winds of 1.5mm² insulated wire

Well I do not have a LCR meter, I wish (=, but I will manage somehow soon.

Cheerz~

So you have dirty little secret of flyback and by placing capacitors on two halves of primary for collecting spikes and running it on resonant oscillations..
"CW to CCW one coil." - do you mean coils like in Don Smith board with CW+CCW?

[GeoFusion]

@Hoppy: ah Take your time man (=. we all busy hehe. But yes the Double split of the core is the trick of it all.
Many of my circuits ceased to work many times shortin the wires of the secondary. It's ultra sensitive.

very high permeability is really not needed that is true, just your standart TV ferrite yoke that already has 2 splits.
but has to be modified by putting paper or tape between the plits, but only one layer of it only. To much layers will reduce output load.

So you have dirty little secret of flyback and by placing capacitors on two halves of primary for collecting spikes and running it on resonant oscillations..
"CW to CCW one coil." - do you mean coils like in Don Smith board with CW+CCW?

T-1000: haha yes you could say so. Caps carry and run resonantly back.
and no, not like Don Smith. CW+CCW.

[GeoFusion]

Primary Coil winding Example.
it's all one direction with center tap.

[Hoppy]

Primary Coil winding Example.
it's all one direction with center tap.

Thanks for the sketch - tells me form my own experiments that the CW - CCW wind pattern proposed by others on the forum could be disinformation and certainly makes no sense technically.