Abstract: Coils of wire having different geometries are wound onto the same dynamoelectric device core or onto cores having different geometries utilizing a flier-type winding machine having a winding form or forms provided with two sets of differently configured wire guide surfaces and rotated to be selectively oriented to wind coils of one geometry or the other. Such rotation may be accomplished by rotation of the flier with which the form is associated. A center guide assembly having two selectively operable guide members is also disclosed.