This latching light alarm was found in the 1995 Encyclopedia of Electronic Circuits Volume 5. The circuit is powered with 12 V to provide a signal to a power stage.
Higher power of an LM380N that has a power of 2.5 W can be obtained with a bridged configuration. The power...
This circuit is a traditional timer setting using 555. We found this setting in a year 2000...
This simple circuit with transistors turns on a small lamp when it gets dark. The sensor is an LDR...