Microphone Preamplifier Circuits
![](images/micpreamp_1.jpg)
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A standard single transistor electret microphone preamplifier circuit
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![](images/micpreamp_2.jpg)
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A standard opamp based electret microphone preamplifier circuit
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![](images/micpreamp_3.jpg)
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A standard opamp based dynamic microphone preamplifier circuit
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