555 Amplifier Circuit

In this circuit 555 timer ic can be used as an amplifier.It operates very similar to pulse width modulation. The component values cause the 555 to oscillate at approx 66kHz and speaker doesn't respond at this high frequency.Instead it responds to the average CD value of the modulated output and demonstrates the concept of pulse-width modulation. The chip gets very hot and is only for brief demonstrations.

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