Abstract: A method of terminating coil windings is disclosed in which the ends of the coil wire are wound around posts which are integral with the bobbin prior to and, at the conclusion of, the coil winding process. The bobbin is provided with terminal-receiving cavities located such that the ends of the coil wire extend from the posts across these cavities. Electrical connections to the ends of the coil wire are made by cutting off the posts and thereby severing the wire at a location adjacent to the post and inserting terminals into the cavities which establish contact with the ends of the coil wire. The lead wires can then be connected to the same terminals.

Abstract: A coil bobbin is disclosed which has means for facilitating electrical connections of the coil wire to external conductors. Improved coil winding and manufacturing methods are also disclosed. The coil bobbin has two contact receiving cavities extending into one of its flanges and has integral binding posts for the wire extending from the flange. Wire positioning means are provided for locating the coil wire with its axis extending from the binding posts in crossing relationship to the cavities and then to the coil supporting surface. In use, the wire is wrapped around one of the posts, passed through one of the cavities, and is then wound on the coil supporting surface. After the required number of turns have been wound, the wire is passed through the other cavity and wrapped around the remaining post. Terminals are inserted into the cavities to establish contact with the wire and the posts are cut away from the bobbin flange.