Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
RIAA-1303 Ultra Low Noise & High Quality Phono Pre Amp SPECIAL Design - Motronix
Hi-Fi RIAA Phono Preamp
Phono Preamp Design Using Active RIAA Equalization
DIY Strat (and other guitar & audio projects): Making an RIAA/phono preamp
Amazon.com: DYNASTY PROAUDIO UA2D USB Phono Preamp for Turntable, Preamp with RIAA Equalized Low Noise Moving Magnet A/D Converter (Power Adaptor & USB Cable Included) : Electronics
Amazon.com: GOgroove Phono Preamp Pro Preamplifier with RCA Input/Output, DIN Connection, RIAA Equalization, 12V DC Adapter - Compatible with Vinyl Record Players, Turntables, Stereos, DJ Mixers : Electronics