A phase shifter with a low insertion loss in which impedance mismatch at a point in rear of a high-pass filter or a low-pass filter in the signal flow direction is reduced and difference in insertion loss or phase shifting error across a high-pass filter- low-pass filter is suppressed. The method comprises determining a spark timing offset based on one or more of engine speed, a time rate of engine speed, relative air charge, engine coolant temperature, accelerator pedal position, and a time rate of change of accelerator pedal position. Moreover, multiplication clock generators are configured using the dual loop PLL. At least one knockout and associated opening are positioned to provide access to the low voltage wiring connection area and another knockout and associate opening is positioned along to the box to provide access to the line voltage wiring connection area. Nitriles may be produced in a gas phase catalytic reaction of alkanes with ammonia and oxygen in the presence of the catalyst. The tubular label includes printed arbitrary information such as lottery indicia provided on the inwardly facing surface by a non-impact printer in such a manner as to be invisible through the outwardly facing surface of the tubular label.