An electrical connector system includes a header connector that includes a header housing and a header contact. In the manufacturing method of a planar resistance heating element by etching an aluminum foil deposited on an insulating substrate in a desired pattern, printing carbon paste and connecting current input terminals in parallel, the aluminum foil is adapted to undergo a multiple step tempering process to thereby prevent heat deformation. An inner cutter 16 having a cutter body that rotates and makes sliding contact from below with the lower surface of the outer cutter 14, wherein a thin layer portion 28 is formed in a substantially arc shape that is convex upward in a radial and vertical cross section that includes a center axis line which is the rotational center of the inner cutter. Growth within the growth windows is crystalline whereas any growth outside the growth windows is polycrystalline and can be removed by etching. The output symbol has an amplitude based, at least in part, on a transmit data value for which an output symbol was generated during a time interval prior to the third time interval. By moving the seat along the frame member a user can move between an upright seated position and an extended planar position.