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.
Sound Skulptor: MP566 Tube microphone preamplifier for the '500' Lunchbox - Kit, Preamplifiers, MP566
16 DIY pro Audio ideas | pro audio, audio, diy
Balanced Microphone Preamp Project (HSR Aug 84)
DIY Microphone Preamp Kits, Power Supply PSU Kits, OpAmp Test Jig, Electronic Load DIY Kits - FiveFish Audio
Tube Microphone Preamp
Mic Preamp Kit - Electronics DIY Projects PCB
THAT Thing” — A Solid-State Mic Preamp Project - Radio World
FiveFish Audio - X-12 Mic Preamp Kit
Sound Skulptor: MP512 Microphone preamplifier for the '500' Lunchbox - Kit, Preamplifiers, MP512
MB2 Stereo Mic Booster Kit – DIY Recording Equipment
Tube Microphone Preamp
Tape Op | Available kits for DIY assembly - Page 3 - Message Board