Report KD 480 is replaced by report KD 644. Report KD 644 has as title: “Ideas about an 8-pole, 3-phase permanent magnet generator with a stator without iron in the coils, using eight neodymium magnets size 80 * 20 * 10 mm and a housing of an asynchronous motor with frame size 71”. Although the magnet and copper costs of this generator are rather high, advantages are that the generator is completely closed, that it will have almost no sticking torque and that it will have a high efficiency because there are no iron losses and because there is enough space to use thick wires.