This simple circuit was found in the August 1984 issue of Radio Electronics magazine. The circuit monitors the power supply to a computer and has a backup battery.
The base of this circuit is 1/4 of an integrated circuit 4136 which consists of a quadruple 741....
This circuit has a common configuration widely used in projects on this site. The transistor is...
This circuit appears elsewhere in this section and on this site. The circuit generates a linear...