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Lv 7
? asked in Science & MathematicsEngineering · 9 years ago

electret condenser mic amplifier question .. ?

please take a look at the following circuit

http://schematics.circuitdiagram.net/viewer.php?id...

my question is about the microphone and its amplifier circuit (Q2) , what is the voltage range of the audio signal generated by the mic before amplification , and what would it be after the amplification ? in other words , what is the gain that the CE amplifier must give in order to have a pretty clear sound ?

thanks

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    Lv 7
    9 years ago
    Favorite Answer

    About 50mV p-p.

    About 500mVp-p.

    At least gain of 10 to obtain 5Vp-p to modify the carrier.

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