Hi NickZ,

Good progress and thanks for the pictures. Now you know that a 1 turn secondary gives about 12V output and I understand you thought to get around 12V rectified and puffered output voltage which sounds like enough but this may not prove enough for the feedback. I mean now the next possible step is to load this 12V output with as high current as your total setup consumes from the 11.5-12V battery input. And if this 12V output is able to supply that much current and remains around 12.5V-13V like the input, then you could attempt to loop back via the series diode I indicated in my drawing. The 1V higher voltage is needed because it will be lost across the loop back diode.  The big question before a looping attempt is whether the input current increases when yout start loading the secondary output by as much current as the input itself takes? (I mean loading the 2 x 1 turn secondary of course.)
Now your diodes and puffer cap are not heating up much but a little?

Gyula

 

This Russian guy has made several blurry videos, which look like the Akula type of replications.

Quote

His name is Ruslan Kulabuhov.. photo below, and if you would look at the video where he is in a parking lot and a ground is connected it he explains that you need a ground..
His ferrite core has shattered twice and it was very hard to find the right one !!!
 
So far “he” is the only person who UNDERSTANDS the physics, like he says “you need to understand it to make it work .. Suggestions that  one should interpet this clip(s).
 
 Acca… 
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His ferrite core has shattered twice and it was very hard to find the right one !!!

hi Acca,

Since there is a mention of "specific ferrite core" ,flawless ones maybe.Now this bring us back to Akula video which is using yoke core as catalyst.
"I know there was a hot debate  going on previously about specific ferrite cores used"

May be Nickz found a right yoke core by chance which would serve as a "primary  catalyst" for the ou device.

Since my memory is still good which i recall in one of wesley translated video for Akula whom mentioned the yoke core releases "beta wave".There seems to be emphasize on yoke core by Akula then which many of us ignored.
I am still feeling bitter since i can't get my hands on Rubin yoke core from Russia.I think Nickz have given us new hope of finding a suitable yoke core.

My findings on Mazilli circuit is that it will use the  "LC" combination eg:coil+capacitor in parallel to run at that resonant frequency.Another findings related to Mazilli in open circuit the idle current drawn is further reduced upon using the right capacitor around 0.2uf...0.6uf with coil.
 
 

"I know there was a hot debate  going on previously about specific ferrite cores used"

Well done Nick! I am so glad that you make this progress, and so glad that Guyla is involved on this as a team work is always better than moving alone on this field.

By reading Magpwr's post, i recalled something that still is a mystery to me. It is an effect that farmhand reported before a month on Akula's 30W thread, and it has to do with the tv yokes. I replicated this experiment and it is just astonishing to me! Perhaps some of you can help to analyze it. Farmhand had made two coils of 100 turns on each half of the yoke core. At 1MHz, he noticed a very high amplitude peak at 200V at the output, just by feeding the primary with 18V from a signal gen. In my replication, with 150 turns on each half, at 237KHz i take an output of almost 600V pk-pk with just 10V square input. You guys find it normal? Think that both coils have exactly the same turns. For me, something happens inside the core when we are in resonance.   

  The suggestion of first knowing and understanding just what we are trying to achieve with these devices, before trying build them is valid. However, who knows what is really going on? Even Akula mentioned (Earth) magnetic resonance at first, then suggested NMR, then...
   My suggestion for those that have Tv yokes available is to try it and see. Try to find the biggest yokes possible, like the ones that come on the older 34 inch Tv. There is a reason that the bigger yokes are used in the biggest Tvs. They output more power, given the same input source, compared to the smaller yokes.
  I have three yokes, two are about 3 inches wide, one is about 2.5 inches. They ALL work, to produce a good current output. Of course the bigger ones work best.

  I have ordered some zener diodes, as well as some 650v 0.33uf tuning caps, from some local distributors, we'll see if and when I get them delivered. If not, then I'll have to have them brought in from the States.
 
   The Mazilli/yoke circuits running frequency can be adjusted, by the use of these tuning caps, adding or removing primary and secondary coil turns, using magnetite magnets at the core, etz. That is what I am doing in my yoke circuit.
   Those that also have access to circuits that can control the duty cycle and adjust the running frequencies, would be of further help.  Although, I doubt that TK had such equipment for his earlier device, which showed higher output than these later much more complicated designs that we are seeing now.
  I still feel that the original TK device (buried radiator) was for real. Before politics and BS got involved. The Earth ground may be essential for higher output, even though Akula showed his first device running even without a ground connection.
 
   I'd like to know, if possible, if the new tests that were conducted at Akula's place also proved that his second device can run for an unlimited amount of time, stable, without overheating, unlike his first device, which could not.

  Edit:
   This video below is a working replication of Akula's second video device.
You may have seen it before. Or forgotten about it, anyway,  he explains a bit about how it works, the input and output levels, etz...
  I wish that I could understand it, or clearly read the meters, but the guy does nice clean work.

   https://www.youtube.com/watch?v=Y8snEOzF9R4
   
   
 

Hi Jeg,

Normally any coil having an L inductance and a C self capacitance will give a parallel resonant LC circuit at a certain (high enough) frequency. And at this frequency the AC impedance of the LC will peak to a maximum value and this is which increases the AC voltage across it. This is normal.

It is okay that the circulating AC current in the coil will also have a maximum value at resonance and this current can already influence the core, one such effect is saturation, etc.

The fact that resonance was found with a coil at say 1 MHz wound onto one yoke core and another coil resonated at 273 kHz on a different yoke core just shows the permeability, the shape factor and the number of turns difference of the two, the higher voltage amplitude in your case came from the the difference in the losses between the two yokes and coils. This is what I think.

Gyula

Hi Gyula
I believed that is a strange behavior, because primary and secondary are wounded with same number of turns. What makes this huge amplitude difference between prim. and sec? In an isolation transformer when we tune in 50Hz it will pass easier the pwr from prim. to sec. but it will not exceed the 220V voltage input. The reason is that the no. of turns are almost equal in number. Isn't the same rule apply also here?

This stored oscillating energy would be quite small I think.

That is true! Even with capacitor at the output the current is very small. I charge a cap with diode, but when i connect even a high resistance load, after some secs discharges the cap almost completely.

If i remember T-1000 the guy who involved to this Lithuanian experiment, spoke about 3D oscillations. I wonder what will happen if on the same yoke that we are discussing, we wind an other third coil around the periphery of the yoke core, and give there some DC voltage for making a steady magnetic field perpendicular to the other! I think it deserves a try.