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.
This is a circuit with a period component that consisted of a voltage reference. The circuit is...
The critical components of this 1978 circuit are transformers, which, hopefully, can be obtained from...
We found this circuit in the March 1991 issue of Radio Electronics magazine. The integrated...