An electrical machine having a magnet assembly with a magnet carrier ring with an even number of permanent magnets mounted in the carrier ring around a circular locus, and a conductor assembly with one or more conductor circuits wound in a double helix wave winding around a flat conductor support ring with the conductor circuits having uniformly curved conductor segments of involute or arcuate configuration wherein the magnet assembly and conductor assembly are contained in a housing with the magnet assembly rotating relative to the conductor assembly.