Two Way Intercom Circuit Diagram. In addition to audio amplifier lm380 ic1 it uses a condenser microphone mic1 an 8 ohm 0 5w speaker and a few other components. View the complete project tutorial.
In addition to audio amplifier lm380 ic1 it uses a condenser microphone mic1 an 8 ohm 0 5w speaker and a few other components. Circuit description for a simple intercom. For making two way intercom make two identical circuits and combine them as shown in diagram 2.
Let s straight away move into its working details explained in the following section.
The circuit does not involve any complicated switching. The circuit does not involve any complicated switching. Circuit description for a simple intercom. Now connect output of one unit to speaker of other unit and vice versa and use independent power supply for two units and connect them with 3 core wire two wire for outputs and one wire for common ground is required for intercom connection.
