This is the circuit of a commercial radio sold in Japan in the 1960s. The IF is 455 kHz, and the supply is made with a voltage of 9 V. The radio receives stations in the medium wave range.
This mini siren, found in a 2003 publication, powers a small piezoelectric transducer, but a...
In the figure we have the way to implement a sinusoidal oscillator with the 4093 IC. The component...
This circuit can be used in a single optical link or optical communication system and even using an...