STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[Omega_0]

Perhaps there is a better way to place the core as shown.
I guess, the magnet will see less of the core and it will enable you to reduce the pulse width even further, and reduce input energy even more.
.

[plengo]

Last night I ran a simple test to see if "magnetic viscosity" would affect a signal.

I took two coils. Both are bifilar. One has all wires of same dimension (I think 23) and are wound as 1:1 ( classical Bedini for his solid state radiant charger ).

The other coil is 1:1 but one wire is 26 and the other is 23.

Both have iron as the core.

The test consisted of putting a signal from a signal generator in one coil and connect channel A probe of the osciloscope on it. Another probe B connected to the other end of the other wind (all on the same coil).

The signal is to be changed from 1 hz up to megahertz range. The scope should show both channels with the same signal and strength. Except for very small variations on the signal both signal should be the same phase and amplitude. Being square wave or sine wave. When using square wave I saw distortion on the signal (as expected) but still the same signal on both channels of the oscilloscope.

I tested the procedure on both coils and both had the same results.

Now, I change the core of one of the coils (the one with the same wire 23 on both winds) with a very powerfull NeFb Magnet.

I ran the same test and the results were nothing like before. Up to high end kilohertz the signal on both channels of the scope were still the same BUT when going to higher frequency such as megahertz things changed substantially.

I could not only make the signals very different in voltage, shape but also up to 180 degree offset. In some points I even had an amplification of the signal.

I am puzzled since I would expect the same signal behaviors as before. Off course having a powerful magnet as the core would be the same as having a core that is always saturated ( I think there is nothing more saturated than a full running Neo manget ).

My poor conclusions (for lack of better knowledge) is that the magnetic viscosity manifest itself more under higher frequencies therefore causing a much higher distortion of the signal through the coil.

Any corrections, ideas please?

Fausto.

[Groundloop]

Hi,

Here is my new motor. (It is a recycled Bedini motor)
The motor uses my ultra simple switch posted earlier.
(On this motor I use a MJ15003 and 680R+500R bias).

It runs at a terrible fast speed. I have not even tried
to run it at full speed yet because I'm afraid that the
rotor will disintegrate. The rotor is from an old 230VAC
fan. I have removed the fan coils and fan blades,
and has glued (with hot glue) four Neo magnets NSNS
inside the plastic hub.

I use Neos on the core as shown. The trigger coil is loose
and I adjust it by moving it around. I will glue it on later.
The motor uses up to 4 ampere from a 12 volt battery,
if I let it do that.
The power npn transistor gets hot but the core stays cool.

I will now add a generator coil so that I can get the rpm down
to a safer level.

EDIT1: I have added a 450 turn Ferrite core generator coil. The motor runs well
         width the generator coil on but the drive transistor get hot so I can't run
         for long yet. My first loop back test did not charge my lead acid battery.

Alex.

[PaulLowrance]

http://www.youtube.com/watch?v=eGHCDgZt6ag

Nice, but I sure wouldn't want the job of centering & drilling those holes.     At least not with my tools.

[MrWolf]

http://www.pmillett.com/Books/mag_amp.pdf

Very good book about magnetism and magnetic amplifiers. For anyone feeling he has some gaps in knowledge of these things. Also some interesting patent:

http://www.wipo.int/pctdb/images4/PCT-PAGES/2000/142000/00019458/00019458.pdf

And enough of those low-powered toys, instead make some more of those pre-saturated toroids with neodymium cores... All or nothing