Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
MRIAA-IC12V HIFI RIAA Low Noise IC Stereo MM Phono Preamp Board Powered By Single 12-24Vdc - Motronix
Paul In The Lab: RIAA Phono Preamp Stripboard Layout
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