A laminated shingle simulates a tiled roof when placed with other similar shingles on a roof deck. The sprayer tank may rest upright on the ground when not being worn, and may be filled in this orientation without damaging delivery components attached to the bottom of the tank. The first impurity region is formed to be overlapped with a side wall. The local oscillator frequencies are provided by a frequency synthesizer as a function of an output frequency signal of a phase lock loop.