It's an interesting show, none the less. Esa's vids reveal that there are slots for three circuit boards in the present design. There are also three coil sets. I suspect we will see an evolution of this device as the demonstration progresses.
If they can recover the energy to saturate the toroids in the motor, maybe they can direct this energy to the generator toroids to eliminate cogging (sticky spots). The dramatic finalé will be to have the motor/generator built out in increments with the last step to remove the battery and attach a light bulb and leave it running for hours. Or not. Terry

