The integrated circuit used in this circuit from a 1987 documentation is no longer common today. This circuit can generate a multitude of different sounds and this circuit is an example of application.
This circuit was obtained in a 1991 Electronics Handbook. The publication no longer exists, but...
This circuit causes a buzzer to emit an intermittent tone when the temperature sensed by the...
This configuration from an American publication from the 1970s shows how to use a pair of power...