We found this circuit in a 70s Electronic Design documentation. The circuit uses general-purpose transistors from the time. Linearity is better than 0.25%.
This simple unregulated power supply with half-wave rectification is for small appliances that do...
This simple latching alarm circuit using CMOS gates was found in the May 1990 Radio Electronics magazine....
This circuit was found in the October 1989 issue of Radio Electronics magazine. It drives an...