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Simple Mic Pre-Amp based LM358

2015-01-06 21:06  
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Simple Mic Pre-Amp based LM358
Here the simple audio mic pre amplifier circuit based on single IC LM358. The circuit is very simple, inexpensive and easy to built. Component Parts List: R1, R3, R4 = 10K R2 = 1K R5 = 100K-1M Potensiometer C1 = 0.1uF C2 = 4.7uF/16V IC1 = LM358 dual op-amp single supply Mic = Electret Microphone