Found in an Elektor from the 90s, this TTL circuit can be used as a shield without any bouncing problems. The circuit must be powered with 5 V.
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...