Glossary:Electret microphone: Revision history

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    19 October 2022

    • curprev 20:3220:32, 19 October 2022Philip talk contribs 284 bytes +284 Created page with "An electret microphone is one containing an electret material (having a built-in electric charge) to convert the sound into a varying electric charge. An FET is always incorporated in it requiring a supply of a few volts, to convert the charge into a varying voltage."