Thane Heins Perepiteia.

[Groundloop]

Steve,

I found an old PC power supply and can use two of the Ferrite cores from that unit.
They are made of Ferrite and of different size. It will take three hours to wind the cores.
Then I will build an oscillator as shown in the attachment to test the cores.

Groundloop.

[Groundloop]

@All,

Can anybody tell me the permeability difference of the two cores in the attached image?
Which core has the highest permeability of the two?

(One is yellow with a white ring. The other is pale green with a blue ring.)

Groundloop.

[Steven Dufresne]

Groundloop,
Do you mind if I print at least your diagrams to show Thane on Monday for his feedback? I found that back when I was visiting David Hamel, bringing my replication helped a lot since he pointed out details I would never have thought to ask about.

Luc,
Do you have a colour printer? That would be much much cheaper than going to a shop to get printouts.
-Steve
http://rimstar.org

[Groundloop]

Steve,

Everything I do here is open source. Print, share all you want.

Groundloop.

[hartiberlin]

Hi Groundloop
with the Switch SW1 in your circuit:




you can easily switch in and out the MMF coupling of the cores,
thus if you do it very fast and maybe with a spark gap you can
make very nice BACK-EMF pulses at the output coil !

So you could convert all the flux in the second right core to ouput power
without drawing additional input power, if you open up the switch.

It is a very fantastic and easy circuit !
Congratulations !

Regards, Stefan.