In January 2000 serfing the web I visit JLN Labs site .I find  there "Magnetic Moebius Tripole" progect .I built this coil setup and make all experiments that published in site and more. I wind the mirror secondary coil and make transformer , construct control board to drive it.

In this web page, you will find a mean for building a Double Moebius Tripole Transformer , the control board and description of some experiments.

Your must prepare ferrite rods for winding(fig.1)

                                fig.1

The primary coil has been wound with 70 turns (2x35) of 4/10mm copper wire (fig.2),
the secondary is like primary but in mirror winding (fig.4).

                                fig.2

 When your winding is closed to the middle of the rod , change direction of  winding (counter clockwise)   fig.3

                                fig.3                    

                                fig.4  

                    The side view (figs.5,6)

                                fig.5

                                               fig.6 

 Feedback transformer is wound on ferrite magnet from old loudspeaker 
The primary consists of 12 turns with special winding type . The secondary winding like primary but in bottom side of ferrite magnet .

    

                Construction of feedback transformer

          The view of  DMMT with  feedback transformer