This constant current charger from 1997 Linear Technology Applications uses common components at the time. The transformer is the critical component, being designed according to the load voltage.
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...