JE Labs Arkiv (up to 2008): JE Labs phono and line preamp
Magnetic phono preamp.
The Valve Wizard
Valve phono preamp build - Stereo Amplifiers & Pre-Amps - StereoNET International
Tube Phono Preamp with passive EQ
VinylSavor: The Octal Phono Preamplifier, Part 1 : Circuit
Phono Preamps at Last
The Valve Wizard
Magnetic phono preamp.
7025, ECC803S, 12AX7A Tube RIAA Phono Preamplifier Schematic
Phono Preamps at Last
RIAA Schematic for-6SL7,7308 or? | diyAudio
Bob's Vacuum Tube Phono Preamp
Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
LR Phono Preamps
A MM PHONO vacuum tube preamplifier DIY - Davide Bucci
12ax7 Phono Preamplifier | diyAudio
Updated Groovewatt Tube RIAA Phono Preamp Schematic | Valve amplifier, Tube, Vacuum tube
6 Tube Stereo Pre
Tube Phono Preamp with passive EQ
Tube Phono Pre-amp
Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
Hi-Fi RIAA Phono Preamp
