Here's a really excellent description of how an electret microphone works, complete with a dissection of the device.
http://www.openmusiclabs.com/learning/sensors/electret-
Crystal mics are much more interesting, of course, because of the opportunity to chemically tailor the audio response...
We’re a garage band, we come from garageland
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Hi, FastRadioBurst 23 here letting you know of a couple of our shows this
week. On Sunday 28th April 2024 at 0900/1300 hrs UTC on 6160 kHz and then
at 2000...
3 hours ago
Rock salt, a fresh lime...
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