Abstract: An apparatus for producing a tape wrapped conductor by advancing and rotating the conductor as it moves from a source reel to a take up reel. Successively positioned adjacent the moving conductor are a first tape having an aluminum foil thereon, a drain wire, and an outer insulating tape, so that the tapes and the drain wire are drawn into a spiral wrap in successive overlying relationship by the advancing and moving conductor. The first tape is applied with its aluminum foil side facing outwardly of the conductor and toward the drain wire.