Stereo Preamp mic Archives - Amplifier Circuit Design https://amplifiercircuit.net/tag/stereo-preamp-mic Amplifier Project Schematic Diagram Fri, 23 Dec 2011 08:37:09 +0000 en-US hourly 1 103688205 Mono/Stereo Preamp based on LM387 https://amplifiercircuit.net/mono-preamp-or-stereo-based-on-an-lm387.html https://amplifiercircuit.net/mono-preamp-or-stereo-based-on-an-lm387.html#respond Fri, 11 Nov 2011 07:20:43 +0000 http://amplifiercircuit.net/?p=732 Mono Preamp (or stereo), based on an LM387 for dynamic microphone. The preamplifier described here is designed to connect a […]

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]]> mono pre amp micMono Preamp (or stereo), based on an LM387 for dynamic microphone. The preamplifier described here is designed to connect a small dynamic mic. We will see that it can adapt to a wide range of microphones.

As you can see, Mono Preamp (or stereo), based on an LM387 diagram is very simple. It is based on the use of an LM387, which is really common, but has proven in the field of “low noise”, just like its cousin the LM381.

Parts list :

R1 : 10K
R2 : 560
R3 : 100
R4 : 22K
R5, R6 : 100K
C1 : 100pF
C2 : 1uF
C3 : 220uF
C4 : 1uF
L1 : VK 200
U1 : LM387

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