A potentially novel pre-amp for electret mic capsules which have their internal FET's Drain and Source connections available separately
Biasing Sub-miniature Electret Microphone | Electronics Forum (Circuits, Projects and Microcontrollers)
Electret condenser microphone amplifier for use in microcontroller projects - Do It Easy With ScienceProg
Electret Microphone
Increase electret microphone bias voltage - Electrical Engineering Stack Exchange
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electret microphone | Gas station without pumps
Powering microphones
Three types of headset detection to embed in audio converters
1. Microphone Interface Figure 3: ECM Biasing Circuit | Chegg.com
amplifier - Electret microphone: selecting a bias resistor - Electrical Engineering Stack Exchange
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Parabolic Microphone
Condenser microphone pre-amp with bootstrapped op amp
Electret condenser microphone amplifier for use in microcontroller projects - Do It Easy With ScienceProg
Microphones
amplifier - Electret microphone: selecting a bias resistor - Electrical Engineering Stack Exchange
