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Overunity Machines Forum



sstc changing frequency issue

Started by Jeg, January 12, 2014, 04:51:58 AM

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Jeg

#20
March 08, 2014, 04:38:06 PM
Quote from: gyulasun on January 12, 2014, 12:37:58 PM
Hi Jeg,

Please do the tests as MarkE suggested of course, I did not mean to dissuade you from anything what others tell you.


Gyula I am sorry for not doing this earlier but I just notice that. You have helped me many times in the past and I really admire you for your knowledge in electronics. What I meant was that the worst scenario was to rebuilt my secondary as I do that by hand and it really kills me! I hope that there is no misunderstanding here.

Best regards
Jeg

Jeg

#21
March 15, 2014, 12:55:40 PM
Hi to all :)
The following images are from the same Radu Motisan Oscillator circuit. Shots were taken with oscilloscope's ground clip attached to probe's tip forming a one loop receiver coil.

Six turns main coil, two turns tickler coil.
Every shot is with different cable length attaching coils to the main circuit.
Power supply is 36v by 3X12V batteries.
Mosfet Irfp460

Every Mosfet changing even same brand, needs re adjusting the cable lengths to achieve the same as below results. After some training on this I can achieve the right resonance in a couple of hours by trimming and trimming and trimming the cable length. To make this I burned over 15 Mosfets because when resonance is being achieved the build up of voltage is enormous that even fast fuses can not catch it. Finally I stabilized that with 36 volts supply, and pot in place of the 1K resistor and of course a current meter to watch what happens on drain.

Just watch the coil's oscillation transformation in relation with the different lengths. And finally watch at the end the perfect resonance at the natural frequency of the wire. Around 3Mhz switching mosfet frequency, and about 50MHZ oscillation at the coils at 60v!!!

Jeg

#22
March 16, 2014, 03:39:32 AM
I am thinking of modulating it by supplying it 36V rectified 50Hz signal from main without smoothing cap. This teqhnic will help to take 50Hz at a secondary output...i think! What is your opinion guys?

Jeg

#23
March 17, 2014, 09:03:16 AM
Has anyone use this Mazilli driver? Does anyone know the frequencies that can catch with air coils?

Jeg

#24
March 23, 2014, 07:48:24 AM
sorry guys I need to make some editing on this.
Thanks
Jeg
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