That means if you had a transformer coupled parallel tank circuit, the resonant frequency will not change no matter what the load and it Q doesn't change then it will operate over unity so long as Q remains high. If that holds true when you saturate the core at a 90 degree angle in respect to the windings, you are only steering the flux with an electromagnetic field.
gilbondfac, I've just figured this thing out, and I figured out to use it. It's simple. You are aiding or subtracting from an existing magnetic field. After that the core is saturated, and that changes the value of inductance of the inductor to an air core value. That kills reflected impedance. But, it doesn't stop how magnetic lines are steered by magnetic materials.
If you know Naudin, you must know Paul Pantone's GEET.
Have you done a GEET? If so, please post a video; all the GEET community and researchers would love to see someone like you experimenting and improving the GEET.
It's just some saturation effect i believe. Magnet saturates the toroid in one place, imposing the field directed clockwise and counterclockwise along the toroid from the magnet point. In one direction, field adds to the field of the coil (it has DC component, right? (judging by oscilloscope)). It is same as if you had a gap in the toroid, and placed the coil near gap to one side. For the current meter, it will not show you the power when you have weird-waveform ac.
Well, DC pulsed is AC+DC effectively, e.g. 10v square wave dc pulsed = 5v square wave AC + 5v DC . Especially bad when you pulse through the coil, when you disconnect the coil you get huge backwards voltage spike over the coil.
For the effect, I think it's like this, on one side of magnet where fields add, core oversaturates, magnetic permability goes down, its almost as if you cut toroid into C shape. Old Soviet colour TVs had all sorts of transformer+adjustable magnet devices.
It was mostly used for tuning in colour TVs, 70s or so, i don't know where to get any though. The schematics symbol is that of transformer, with magnet nearby and line through magnet (meaning its movable).
It is very simple & cheap way to tweak magnetic permeability of the core.
Hi, Does that mean that adding more pickup coils (2 or more) to the toroid is not affecting the input current of the toroid? And what happens if you use two pickup coils, is the overall generated current/voltage doubled? If yes, it would be interesting to know what are the limits of scalability....
Shit seems complex. Nice video.
2pacbestever 1 month ago
What does this really do?
Riskteven 2 months ago
That means if you had a transformer coupled parallel tank circuit, the resonant frequency will not change no matter what the load and it Q doesn't change then it will operate over unity so long as Q remains high. If that holds true when you saturate the core at a 90 degree angle in respect to the windings, you are only steering the flux with an electromagnetic field.
FlavoredCoffeeGuy 11 months ago
gilbondfac, I've just figured this thing out, and I figured out to use it. It's simple. You are aiding or subtracting from an existing magnetic field. After that the core is saturated, and that changes the value of inductance of the inductor to an air core value. That kills reflected impedance. But, it doesn't stop how magnetic lines are steered by magnetic materials.
FlavoredCoffeeGuy 11 months ago
If you know Naudin, you must know Paul Pantone's GEET.
Have you done a GEET? If so, please post a video; all the GEET community and researchers would love to see someone like you experimenting and improving the GEET.
oscarteos 1 year ago
@oscarteos yes i made it in 2000's but i have no video of it ! i'll try to make it soon ! thanks !
gilbondfac 1 year ago
It's just some saturation effect i believe. Magnet saturates the toroid in one place, imposing the field directed clockwise and counterclockwise along the toroid from the magnet point. In one direction, field adds to the field of the coil (it has DC component, right? (judging by oscilloscope)). It is same as if you had a gap in the toroid, and placed the coil near gap to one side. For the current meter, it will not show you the power when you have weird-waveform ac.
dizekat 2 years ago
ok for the saturation effect but no ac current it's DC pulsed in the toroïd ! the current come from my DC power supply directly.... Thanks !
gilbondfac 2 years ago
@gilbondfac
Well, DC pulsed is AC+DC effectively, e.g. 10v square wave dc pulsed = 5v square wave AC + 5v DC . Especially bad when you pulse through the coil, when you disconnect the coil you get huge backwards voltage spike over the coil.
For the effect, I think it's like this, on one side of magnet where fields add, core oversaturates, magnetic permability goes down, its almost as if you cut toroid into C shape. Old Soviet colour TVs had all sorts of transformer+adjustable magnet devices.
dizekat 2 years ago
try it ! replicate ! where can i found a soviet transformer ? Thanks!
gilbondfac 2 years ago
@gilbondfac
It was mostly used for tuning in colour TVs, 70s or so, i don't know where to get any though. The schematics symbol is that of transformer, with magnet nearby and line through magnet (meaning its movable).
It is very simple & cheap way to tweak magnetic permeability of the core.
dizekat 2 years ago
it looks like a simple transister is it not?
squirrelspown 2 years ago
wow nice video...
dreamyear 2 years ago
ce que tu viens de montrer et jean louis naudin aussi est le Smeg de Tom Bearden modifier, je pense
LEON111062 2 years ago
whats the input and out put
littleohah 2 years ago
if you see the video you see 12V DC @ 71mA
with the magnet without magnet 86mA
and in the pickup coil a few ma ! but the most important ! it's the no variation of input current and the current input decrease with magnet !
gilbondfac 2 years ago
Hi, Does that mean that adding more pickup coils (2 or more) to the toroid is not affecting the input current of the toroid? And what happens if you use two pickup coils, is the overall generated current/voltage doubled? If yes, it would be interesting to know what are the limits of scalability....
CHmarkus 2 years ago