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.
We found this configuration in an old 1970s American documentation. The circuit may use equivalent...
This circuit was obtained in a 90s Electronic Design. The circuit uses components from that time....
This circuit connected to the input of a good amplifier, with suitable coils can tune stations of medium...