I have looked on the web and all I have come up with is hopelessly conflicting information on this. One examples uses a series 10k resistor from a 3V power supply. Another uses a voltage divider of 3.3k and 5.6k with 9V power supply and no series resistor. Another uses a 2.2k series resistor from…

Biasing an electret microphone?

jremington April 13, 2018, 4:58pm 2

I don't think it matters much. However, one possibility is to start with 10K and measure the output voltage. Adjust the resistor value until the output voltage is about 6V.

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Biasing an electret microphone?

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