A new and distinct cultivar of Penstemon plant characterized by large dark red purple flowers, long bloom time, showy dark purple seed capsules when young, upright, well branched habit, with multiple crown from the base, clean-looking, deep green, attractive foliage, and excellent vigor. The spacing between the electrodes andor the size of the electrodes is adjusted for controlling depth of penetration and current density. A time shifter shifts the second clock signal by a shift period, and transmits the shifted signal to the clock input of the storage elements. The narrowband terminal selects at least one cell from among one or more neighboring cells. Based on a result of this comparison, a digital signal is reproduced from the input signal.