Found in the 1975 RCA tube manual, this circuit appears elsewhere in this section. The circuit uses contemporary components and is powered by the power grid.
This circuit uses one of the 6 CMOS inverters of a 4060 as a touch on / off switch. The power...
This aperiodic circuit was found in an old English documentation. The transistor can be any JFET...
This circuit can function as both a light alarm and a shadow alarm. The components are common. The...