Three ECC83-Based Tube Phono Preamplifier Circuits - EEWeb
Valve Phono Preamplifier
Bob's Vacuum Tube Phono Preamp
RIAA network on cathode follower | diyAudio
6 Tube Stereo Pre
Borbely RIAA Preamp With Tubes - A Project Remembered and Revisited | audioXpress
Borbely RIAA Preamp With Tubes - A Project Remembered and Revisited | audioXpress
Valve phono preamp build - Stereo Amplifiers & Pre-Amps - StereoNET International
RJM Audio - Tube passive phono preamplifier
The Valve Wizard
VinylSavor: The Octal Phono Preamplifier, Part 1 : Circuit
LR Phono Preamps
Tube Phono Pre-amp
Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
Class IX PP1 Vacuum Tube Phono Preamp
12ax7 Phono Preamplifier | diyAudio
A MM PHONO vacuum tube preamplifier DIY - Davide Bucci
RIAA Equalization
Marantz 7 RIAA Phonograph Preamp – Preservation Sound
Hi-Fi RIAA Phono Preamp
JE Labs Arkiv (up to 2008): JE Labs phono and line preamp
6DJ8 Tube RIAA Phono and Line Preamplifier Schematic
Tube Phono Preamp with passive EQ
Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
Phono Preamps at Last
