This circuit for multiple sound inputs was found in a Radio Electronics from January 1992. It consists of a Bargraph connected to a multi-input mixer.
July 13, 2015 - Mouser Electronics, Inc. today announced that it has signed a global distribution...
With the circuit shown in the figure, we have a logic signal to activate a calling device when...
The integrated circuit used in this application is not currently common. However, it can be...