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.
This circuit was found in the November 1993 issue of Electronics Now magazine. It uses...
This circuit was found in a Popular Electronics from the 90s. The effect circuit uses components...
In the circuit shown in the figure, when the input voltage rises to 27 V, the TL431 triggers the...