API 312
MP2570 | Stereo Mic Preamp - DIY KIT | Reverb Australia
Hardware Blog: SC-1 Mic Preamp Kit
NEW PREAMP! X-12 Mic Preamp | GroupDIY Audio Forum
I built a mic preamp (DIYRE CP5) - YouTube
AVDAUDIO.COM*** DIY kits, tranformers and more | GroupDIY Audio Forum
Sound Skulptor: MP573 Microphone preamplifier for the '500' Lunchbox - Kit, Preamplifiers, MP573
Access 312 preamp PCB's - Collective Cases DIY API 312 style preampCollective Cases
Studio tools - PARASIT STUDIO
CAPI VP312 Preamp Build (and HP Filter Switch Mod) - RockScience
The PA1 DIY Tube Preamp: Efficiently Built With Salvaged Components : 13 Steps - Instructables
High on Technology: API 3124 MIC PREAMP QUAD OUTPUT ATTENUATOR DIY
Sound Skulptor MP573 ⚡ Buliding a Neve (style) Mic Pre - The Beat Shed
MPF-500 Mic Preamp – CHAMBORD AUDIO
Sound Skulptor: MP512 Microphone preamplifier for the '500' Lunchbox - Kit, Preamplifiers, MP512
DIY Cheap Preamp for Dynamic Microphones - Ec-Projects - YouTube
How to Build your Own Preamp - CAPI VP28 (API Mic Preamp) DIY Build PART 3 - YouTube
API-ish Mic Pre Project | GroupDIY Audio Forum
DIY Microphone Preamp Kits, Power Supply PSU Kits, OpAmp Test Jig, Electronic Load DIY Kits - FiveFish Audio
REALLY CHEAP DIY mic preamp kit?? - Gearspace.com
The reawakening of a beautiful old lady...(API 312) | GroupDIY Audio Forum
SK-1DI Mic Preamp Kit for 500 Series API Lunchbox, Rev.1.2 now available – FiveFish Audio Blog
CP5 Colour Mic Preamp – DIY Recording Equipment
The reawakening of a beautiful old lady...(API 312) | GroupDIY Audio Forum
