Show HN: Building Electret Mic Preamp Open sourced https://ift.tt/lv2rZLE

Show HN: Building Electret Mic Preamp Open sourced I designed and built a studio-quality electret microphone preamp focused on low noise, high gain, and clean audio capture using easily available components. This is an original design — it does not follow TI, Analog Devices, or other common application schematics. The circuit was tested and verified in LTspice before building. All schematics, design rationale, and build instructions are open-sourced for anyone to replicate or improve. Here's a short demo of the audio performance: https://youtu.be/RZR_PrxcBBU?si=9gN_5yx09bwNFjba I spent over a month researching, simulating, and testing before publishing. Feedback is welcome! https://ift.tt/JZg7bKQ June 11, 2025 at 10:35AM