This dynamic mixer allows for smooth adjustment of the signal's passage from one channel to another. We found it in an American documentation from the 70s.
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...