Adapting a USB sound card to work with a studio condenser mic
JEDAC - yet another take on a DIY high-end USB Audio DAC
PC Sound Card with Stereo Microphone Line Mixer - EEWeb
Make a Sound Card with PCM2704
Instructions, schematic, and notes on the DRA-30 USB Radio Adapter - by Masters Communications
Sound Card Interface
Daqarta - Sound Card DC Input / Output Modification
usb - Line out bias on sound card output - Electrical Engineering Stack Exchange
DIY: USB Sound Card - Make:
PCM2706 USB Sound Card | Electronic Schematic Diagram
USB VOX 1.00 - USB SOUND CARD VOX COMBO - Ankara Telsiz ve Radyo Amatörleri Kulübü Derneği
USB Sound Card : 8 Steps - Instructables
A Simplified USB Sound FOB Modification
The Sound Card, Heart of Digitial Operation - Nashua Area Radio Society
USB Sound Card with PCM2702
USB Sound Card : 8 Steps - Instructables
USB audio dongle with PCM2912
Soundcard Interface
Baudline | Hackaday
Pinout Diagrams for the PCM2704 and 3D Sound(COB) USB Sound Card Adapters - tinkerBOY
USB sound card - Share Project - PCBWay
USB Sound Card Hack
Mare & Gal Electronics » Blog Archive » Tiny, isolated USB to Xcvr interface (PTT, Audio, CAT, …)
