One IC Led Flasher circuit Diagram

Most of people always send emails to Free Circuit Diagrams 4U asking simple Circuit diagrams. Here I'm going to give you a very simple flasher circuit diagram the specialty of this circuit is we can operate this circuit with 1.5 V power supply.And we have used only one IC for this circuit that means you need to buy only three parts to build up this circuit.Here we have used common IC3909.

Note : 
         # Build this circuit on a PCB
         # Don't supply over 1.5V