Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

   Quote from Gyula:


"Hi AG,

Coil 7.4 mH gives (a parallel) resonance at 14.81 kHz with C1= 15.6 nF

Coil 220 uH gives (a series) resonance at 11 kHz   with C2= 940 nF   Do you have an L meter to check the coils? it would greatly help tuning.

The 138 uH coil which terminates the 220 uH-C2 series circuit would detune the (series) resonance from the present 11 kHz towards 8.6 kHz. It is very likely that you would need to detune one of these two LC circuits from the other by a certain amount to arrive at the 90 degree phase shift  but with these component values the frequencies seem to be too far from each other already.

If the goal frequency for the LC circuit of 7.4 mH-15.6 nF is say 18.73 kHz, then first remove C2 and tune 7.4 mH-C1 circuit for 18.73 kHz. To see this tuning, connect a scope probe across the 220 uH coil (it will serve as a coupling coil for this check) so you should see a sine wave and check the frequency.

Then connect back C2 and try to tune the 220 uH - 940 nF circuit towards this goal frequency too. with considering the frequency lowering effect of the 138 uH coil. This time for this tuning to see it and bring this resonance close to 18.73 kHz, connect the scope probe across the 138 uH coil and change the number of turns of the 220 uH coil (or the cap value of the 940 nF).  A few kHz difference from 18.7 kHz is ok I think either down or up (because the needed phase shift will change that I think).

I assume that all the coils and other components are present in your actual setup as per the schematic so that any frequency detuning effect is included during these tuning attempts. 

Now, if you manage to do these two tuning steps, then leave the probe across the 138 uH coil and connect a 2nd scope probe across C1. IT is very likely that the ground clip connection of this 2nd probe may cause detuning in itself,  I do not know,  but if the the 90 degree phase shift is needed between the two 18.73 kHz outputs, then somehow a means should be found to check it and adjust it. So if the connection of the 2nd probe ground to any side of C1 drastically changes the previous tuning, then this phase shift check method of using two scope probes cannot be used of course.
Maybe you already have arrived up to this situation?

ADDITION:  a better placement of the two scope ground clips would seem to be the common point of C1 and C2 when checking the 90 degree shift I think".   


Gyula

[gyulasun]

Hi Nick,
I just made an additional sentence to the end of that post, you may wish to copy that too.
Of course, my comments are but a general approach to a given circuit situation, may or may not fully be useful...   
Gyula

[NickZ]

   The above answer from Gyula may be the reason that I've never seen any type of phase shift.   
   Who says that a phase shift is what's called for, anyway?

   You have to take into account what the feed back circuit is also going to do to all that fine tuning, once you incorporate the looping feed back circuit. Things will change, and yes, the scope probes connections DO affect the overall tuning, and output at the bulbs. I have shown that effect in one of my videos. That is why it's so hard to actually get this contraption tuned right. All circuits need to be connected up to tune this device properly, including the feed back part. And also remember that placing different wattage bulbs can also affect the tuning.

[gyulasun]

Nick, it is a good question...  for I never dig into this circuit and AlienGray asked from me on a possible adjustment for
the 90 degree phase shift between the two low frequency output signals.

This is the sentence what I added to the end of my post in the other thread: 

"ADDITION:  a better placement of the two scope ground clips would seem to be the common point of C1 and C2 when checking the 90 degree shift I think. " 

Gyula 

[gyulasun]

Hi Nick,
I suggest to delete the full content of your above post in which you quoted my post, and
then repeat the copy and paste again in the same post, so that the full text should appear only once.
To do this, click on the Modify icon of that post and highlight the total content  and delete it.Then copy and paste again my text from the other thread.

Gyula