Electronics: Fun & Fundamentals — The Eclectic Electret Microphone - Make:
Electret Microphone - 20Hz-20KHz Omnidirectional : ID 1064 : Adafruit Industries, Unique & fun DIY electronics and kits
Electret Condenser vs True Condenser Microphones
Choosing the Right Microphone - PUI Audio
Oklahoma Sound® MIC-1 Electret Condenser Mic | StageDrop
Amazon.com: uxcell 8Pcs Cylindrical Electret Condenser Microphone Pickup 85dB Through Hole Mini Electret Condenser Mic with 2 Pins 10x7mm for PCB : Musical Instruments
MG-50, MG-50-E.1 - Electret microphone with gooseneck - HOLMCO - Holmberg GmbH & Co. KG
Electret Microphone Amplifier - MAX4466 with Adjustable Gain | The Pi Hut
Amazon.com: Adafruit Electret Microphone Amplifier - MAX4466 with Adjustable Gain [ADA1063] : Electronics
Electret Condenser Microphone with Dustscreen and 3 Pins - 10 mm - 3 to 15 V DC | eBay