mic pre-amp diagram | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Sat, 20 Jun 2015 08:47:09 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 mic pre-amp diagram | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 Simple Mic Pre-Amp based LM358 https://electronicscheme.net/simple-mic-pre-amp-based-lm358/?utm_source=rss&utm_medium=rss&utm_campaign=simple-mic-pre-amp-based-lm358 https://electronicscheme.net/simple-mic-pre-amp-based-lm358/#comments Fri, 04 Mar 2011 21:21:04 +0000 http://electronicscheme.net/?p=809 Here the simple mic pre-amp circuit design based on single IC LM358. The circuit is very simple, inexpensive and easy to built. This mic pre-amplifier […]

The post Simple Mic Pre-Amp based LM358 first appeared on Electronic Schematic Diagram.]]> Here the simple mic pre-amp circuit design based on single IC LM358. The circuit is very simple, inexpensive and easy to built. This mic pre-amplifier circuit operated with 9V DC voltage, you may use 9V battery for this circuit.

Mic Pre-amp Circuit Diagram

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

Notes:

  • Use R5 to adjust the gain of op-amp LM358.
  • The LM358 has dual op-amp module, you may build stereo audio pre-amp using single LM358. These devices consist of two independent, high-gain frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages.

Download PDF document of LM358 datasheet from below link:

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LM358 Datasheet

1 file(s) 1.21 MB
Download Datasheet

The simple mic pre-Amp based LM358 circuit designed by Tony van Roon

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