/diy/ - Do It Yourself

Anonymous Tue Sep 26 13:08:08 2017 No.1250566 [View]
File: 20 KB, 640x480, ElectretColorOrgan1.png [View same] [iqdb] [saucenao] [google]

Hi there! I built an LED flashing circuit triggered by a microphone. I'm using 12v led strips, and 2 tip31c transistors, plus the necessary resistors. When I powered the circuit with a 12v supply it worked perfectly, but then I used a 5v 1A supply with a step up converter (up to 12V) and now the LEDs just stay on. They still flash with sound, but they just turn on and stay on as soon as I power it up. What is going on? Pic related.

>>	Anonymous Tue Jan 14 22:04:39 2014 No.582851 [View] File: 20 KB, 640x480, 1389755075814.png [View same] [iqdb] [saucenao] [google] redraw the diagram and it'll be obvious. in the meantime,, here's a color organ circuit.

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/diy/ - Do It Yourself

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