Háromfázisú feszültség, forgatókar mágessel

To demonstrate the principle of a three-phase current generator;
strong neodymium magnet, fitted with red and green plastics caps, D = 24 mm, H = 12mm;
mounted on a cantilever arm of a metal crank handle;
unit mounted on support (D = 10 mm).
Total length: approximately 230 mm