blinking LED Lights using two transistors & one capacitor

blinking LED Lights using two transistors & one capacitor

             This project is on how to make a simple flashing/blinking LED circuit using two transistors on a PCB board. watch the video for detailed on how to build this circuit. Changing the flashing rate is also possible by changing the value of resistor used
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Components Needed:
1) 1 NPN transistor (BC547)
2) 1 PNP transistor (BC557)
3) Resistors: 100R, 1K, 220k preset
4) Capacitor: 10uF/63v
5) 3mm LED
6) PCB board
Few PCB board Connectors Power Supply: (10v - 12v)DC