Wednesday 13 September 2017

Driving LEDs from audio signal


I am making this very simple hobby circuit and I need help.


This utilizes the sound (variations) from the device through the jack to provide light (intensity) variations in the LEDs using TIP31.


Hence, the sound is not heard (pretty obvious, I know).


I want to know the additions that can be made to this circuit to enable the music (sound) from the device to be heard AND provide enough to drive the transistor and LEDs.




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