Description: A multivibrator has identical components(capacitors, transistors and resistors) arranged on the left and right hand sides that can be used to implement a variety of simple two-state systems such as oscillators, timers and flip-flops. In a multivibrator circuit, increasing the value of the two electrolytic capacitors increases the time each LED remains on/off. 

In the example given below, NPN transistors(BC547), capacitors and resistors have been used. This particular project can be used as LED blinker as well as astable timer for counter circuit.

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A simple project using multivibrator

About multivibrator

Picture taken from technologystudent.com

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Multivibrator-with-counter

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