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.
We found this circuit in an 80's Electronic Design. The circuit uses an integrated of the time....
With this circuit (shield) we can control a load from 500 mA to 1 A, depending on the transistor, using a...
The consumption of this circuit is only 50 uA in the standby condition and 4.5 mA when supplying a pulse...