Abstract: A two part hay bale carrier of simplified economical construction is formed by a wheel unit and a handle member. The wheel unit comprises a pair of wheels journaled by respective ends of an axle which rigidly supports normally upright tines intermediate its ends which are inverted and manually inserted into an end corner surface of a rectangular bale. The bale and wheel unit is then righted. The handle member comprises a pair of parallel tines joined at one end in U-shaped fashion by a bight portion which projects outward of the opposite end of the bale after the hand member tines are longitudinally inserted into the bale end opposite the wheel unit enabling an operator to substantially balance the mass of the hay bale on the wheel unit and move the bale in two-wheel dolly fashion across the surface of the earth.

Abstract: A high power semiconductor switching arrangement controlled by a sensing circuit to suppress transient surges while maintaining operating voltage. The magnitude of a surge determines the rate of current flow through the semiconductor arrangement to maintain the operating voltage required while dissipating the excess power across a load resistance.

Abstract: A high power microelectronic switching circuit is interfaced with a fiberoptic data link, whereby inductive or resistive loads up to 20 amperes are switched, with a forward voltage drop of less than one volt. An input signal of one-half milliwatt is passed to the gate of a V-MOS FET power device, which drives a PNP output transistor to switch a power supply to a circuit load.