Simple Sound Sensitive Circuit Diagram

At present we can see many light systems in parties in clubs or in various types of vehicles.Among them light sensitive circuits get a special place Because most of people use light sensitive circuit diagrams to colorful their parties.At present most of guys use these types of circuits to give a different attraction for their sound systems of their vehicles.Already free circuit diagrams 4U has given you various types of sound sensitive circuit diagrams but this circuit is different from them because this circuit has only one transistor.it is Tip 120 and you can run this circuit with 9Vpower supply.After making this circuit you will be able to see the LEDs are working according to the sound.

Note:
         # Build this circuit on a PCB 
         # Give 9V power for the circuit