An in depth description of an electret, meant to be comprehensive for everyone as much as possible.
Attached to this description you will find a document which is a compilation of forum posts, that condenses all the precious information that otherwise would be scattered all across the internet,which enables the reader to build his own version of electret.
https://mega.nz/#F!KtwB3TrR!G2j0VAUtEI2Hbc9FAu7QIg
