Hackaday (unofficial) October 17, 2023 12:00am Low-Cost Electret Microphone Preamplifiers #musicalhacks #ad797 #amplifier #audiorecording #condenser #electret #filmmaking #microphone #opamp #preamp #preamplifier #sound #hackaday posted by pod_feeder_v2 Low-Cost Electret Microphone Preamplifiers Before the invention of microelectromechanical system (MEMS) microphones, almost all microphones in cell phones and other electronics were a type of condenser microphone called the electret microph…