Abstract: The invention provides a device for enabling a non-integer number of windings to be provided on an inductor. The device comprises a generally planar member adapted to be positioned adjacent to a magnetic or magnetisable core of an inductor. The member has a wire guide, preferably in the form of a slot, said wire guide comprising a first wire guide portion extending from a peripheral edge of the member towards a central axis thereof, but not reaching said central axis, and including a second wire guide portion which extends from said first wire guide portion to at least partially extend around said central axis. The wire guide enables terminal ends of the inductor coil wire to be brought together to exit the inductor and yet enable a non-integer number of windings to be wound on the magnetic or magnetisable core of the inductor.