This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies to other operational ones and component values are given below the diagram.
This power supply makes use of a capacitance multiplier. C2 can be 100 uF which with the action of...
This circuit, which appears in other applications on this site, was taken from a 2000...
Mouser Electronics is already providing new MOSFETs EF SIHx28N60EF of Vishay series for voltages...