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Saturday, August 13, 2011
Audio Level Meter with 8 LEDs Indicator
This
audio
level meter required 2 pieces of LM324 for each channel. Every single LM324 contain 4 op-amps, then you need 2 pieces of LM324 to cover 8 LEDs. And need 4 piece of LM324 for 16 LEDs (for stereo channel)
Here the
schematic
:
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