Using an integrated circuit that was available at the time, this circuit produces animal sounds such as mooing, rooster crowing, etc. The circuit is from a March 1997 Electronics Now magazine.
Found in General Electric's 1966 documentation, this circuit uses company reference diodes, which are...
This circuit uses a wire potentiometer, but the current is much more intense in the control thanks...
In the figure we have another application for the LT3518 integrated circuit from Linear Technology...