VU Meter circuit has 2 versions of the LM3914 and made ​​with lm3915.. LM3914 Dot Bar Display Driver LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 20 Led stereo Vu Metre Devresi PCB Circuit... Electronics Projects, VU Meter Circuits LM3914 LM3915 PCB "audio control circuits, " Date 2019/08/02