This circuit was found in an Electronic Design from the 90s. The shapes of the signals obtained as result of the inputs are shown next to the diagram.
In the original 1992 application, this passive circuit was intended for use in the car. At that...
This 1995 circuit uses an audio amplifier that is no longer common today. However, other...
This circuit is from an 80's documentation. The integrated circuit is from the time and the...