The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the characteristics of the circuit are given next to the diagram.
Found in an October 1992 Radio Electronics magazine article, this circuit generates a low-power tone in...
In the figure we have the way to configure an OR gate using 3 gates of the 7400. The circuit is...
This circuit is basically the same configuration as the previous one with a power stage with...