Recommended · for some experience
Microphone Technology & Design
Why people recommend it
This EEVblog series with Doug Ford is suggested for understanding how condenser and electret microphones differ and what their preamp circuits need.
Watch for: suits audio hardware builders wanting background, not a build guide
In their words
Dave Jones and Doug Ford have recently produced a nice series of videos on this topic.
Dave Tweed on electronics.stackexchange.com, Jun 2014. CC BY-SA.
Check the introductory video's on EEVblog that discuss the difference between dynamic and electret:
jippie on electronics.stackexchange.com, Jul 2014. CC BY-SA.