Electromagnetic coil, and method and apparatus for making same

A method for making an electromagnetic coil assembly, comprising:

• providing a flat strip comprising a bendable electrically conductive metal, the strip having opposite planar surfaces at least one of which is covered by a dielectric material;
• bending an inner end portion of the strip about a bend axis that is substantially perpendicular to the planar surfaces of the strip through an angle of substantially 90°, and bending an outer end portion of the strip about a bend axis that is substantially perpendicular to the planar surfaces of the strip through an angle of substantially 90°;
• winding the strip about an inner hub having a central longitudinal axis such that the bent inner end and outer end portions of the strip extend generally parallel to the central longitudinal axis of the inner hub, so as to form a coil on the inner hub with the inner and outer end portions of the strip forming inner and outer coil leads that extend axially away from the coil;
• and
• connecting an electrical conductor to each of the coil leads.