Electret Preamp Circuit | DXARTS: Digital Arts & Experimental Media | University of Washington
Project 122
DIY JFET Mic Pre: DIY JFET Mic Preamp and Beyond! | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
Microphone Preamplifier Circuit Using 2N3904 Transistor
Results page 5, about 'microphone preamp'. Searching circuits at Next.gr
Condenser Mic Preamplifier Circuit using BC547 Transistor
Electret Mic Preamp : 7 Steps (with Pictures) - Instructables
Transistors Dynamic Microphone Preamplifier Circuit with PCB