Stereo VU Meter with 80 LEDs

This is my another VU meter with 80 LED diodes.
In one channel is used 10x IO LM324, connected like voltage comparator, 40 LED diodes and 143 rezistors.
Complete electric circuit is displayed on the end of the video.
Power indication is not specified, it is only a basic module, which was later connected to the output from the amplifier.
Power voltage 12V, max current input 2,5A.

Видео Stereo VU Meter with 80 LEDs канала zarovka29