Found in a manufacturer documentation from the 90s, this circuit makes use of period components. The configuration can be adapted to use modern equivalent components.
This xenon lamp circuit is from old documentation. The trip transformer has a 1: 1 turn ratio and...
This simple alarm with integrated CMOS sounds a piezoelectric transducer when the sensor circuit...
In the figure we have an interesting circuit for those with a project that requires a sub-multiple...