Abstract: A shield for biasingly self-attaching to a duplex electrical receptacle in a wall without having to be plugged into the duplex electrical receptacle or having to enter the wall and for completely concealing the duplex electrical receptacle to completely hide and thereby protect the duplex electrical receptacle from paint when painting therearound. The shield includes a shell. The shell is generally rectangular parallelepiped shaped for biasingly self-attaching to the duplex electrical receptacle in the wall without having to be plugged into the duplex electrical receptacle or having to enter the wall and for completely concealing the duplex electrical receptacle to completely hide and thereby protect the duplex electrical receptacle from the paint when painting therearound.

Abstract: A driver circuit which has low power requirements, a relatively small number of components and provides flexibility in output voltage setting. The driver circuit comprises, essentially, two portions which are selectively activated by the application of input signals. The output signal is determined by which of the two circuit portions is activated. While each of the two circuit portions operates in a manner similar to silicon controlled rectifiers (SCR), the circuit portions are on only when an input signal is supplied thereto.