Kapanadze Cousin - DALLY FREE ENERGY

[Black_Bird]

@verpies,

Thank you. I guess I can still use my toroid as long as I increase the number of turns. Now, from my calculations, the saturation current should be around 26 A. I want to reduce that down to 15A, which forces me to increase the turns from 10 to about 18.

[verpies]

The attached diagram illustrates what happens when a winding does not completely cover the full circumference of a toroidal core (especially a low permeability core).

[itsu]

Are frequency sweeps of a parallel LC circuit made with this coil, equally bad ?

Well, i measured this single, 24turn coil using the 5 and 10nF caps resonance frequency to be:
1700Khz (5nF)
1196Khz (10nF).

This points to an inductance of about 1.77uH.

No wonder my inductance meter is not registrating this as with the meters clips shorted it shows -0.016mH = -16uH (and not what a said before -0.016uH).

Nice diagram about the leaking flux when the coil is not completely surrounding the toroid.

Regards Itsu

[d3x0r]

Okay; took lots apart and got to just some raw parts.


52mm toroid, 6 turns; probably not enough to saturate this like ever...
First picture, saturation acheived using 12V battery source (20A limit probably), connecting the positive to a 0.1R, with the scope across it (carbon, 11x0.11R), connecting through just 70 turns on the toroid of 20g wire; definatly there is a long time to build up the field, which then allows current up to the capacity of the wires/etc. 


It's not really a case of one signal or the other, you will have the saturation, a sharper rise, but not nessecarily as sharp as this.  The tiny toroid is going to saturate with almost anything; although I did include pictures of 9mm with power attached directly shorting the battery the 12turn coil.


The last picture is the same saturation measurement, but with the scope probe on 10x, and the scale /10 (500mv instead of 5v)  Can barely even see that there is anything like a delay.


At lower resolution time (longer scale), there is often like a couple pixel dip and then the remaining voltage....


9mm toroid
6 turns, 0.026mh (26uh, although the meter reads 13 in air and 3 connected to itself)
12 turns, 0.091 (91uh)


---------
Also; someone shared this link on DSRD for UWB ground radar....

HIGH POWER SUBNANOSECOND GENERATOR FOR UWB RADAR using 1N5408
and To maximize the DSR effect the
forward current through the diode should has low magnitude
and long duration; and opposite, the reverse current should be
high magnitude and short duration. An optimal regime is the
DSRD switches off when the reverse current magnitude
reaches maximum value. 


-------
I think I found a DSRD  35ns recovery; 5uA reverse current; 2 in 1 package, so free parallel DSRDs and I think I can get these locally...

compared with 1n5408 5ua (hmm thought I was closer); no reverse time given

[verpies]

First picture, saturation achieved using 12V battery source (20A limit probably), connecting the positive to a 0.1R, with the scope across it (carbon, 11x0.11R), connecting through just 70 turns on the toroid of 20g wire; definitely there is a long time to build up the field, which then allows current up to the capacity of the wires/etc. 

I see it like this as illustrated on the snapshot of the current trace below:

The slope of the green line represents the initial inductance lasting apx. 3 divisions.
The slope of the red line represents the saturation inductance
The blue line at the bottom represents the V/R limit (you call it "the capacity of the wires").