Fascinating 4 LED Flasher circuit today

Parts list

Parts:
Q1,Q2 – BC548 - NPN Transistors
R1,R2 – 1K ohms - Resistors
R3,R4 – 56K ohms - Resistors
C1,C2 – 22 MFD/25V - Electrolytic capacitors
LED1,LED2, LED3, LED4 – Light Emitting Diodes - RED colour
V1 – 9V Battery

Circuit description

•Astable multivibrator circuit

•Two transistors are cross coupled to work as oscillators

•Two LEDs blink (flashes) depending on the RC network

•RC network comprises R3,R4,C1 and C2

•Blinking rate of LEDs can be controlled by changing the values of RC network

Try this simple easy to build versatile 4 LED flasher circuit today and you can enjoy its performance. Students/ hobbyists favourite circuit.