DIY "Tube" Distortion - High Voltage Neon Drive Pedal - YouTube
preamp - 12AX7 Valve Overdrive/Distortion Effect Pedal - Electrical Engineering Stack Exchange
Tube Distortion Schematic | Guitar, Valve amplifier, Diy guitar pedal
Valve Caster tube effect - boost and overdrive
Overdrive - 12AX7 Tube Pedal – Hagerman Amplification
DIY Audio Electronics from Zynsonix.com: Matsumin Valvecaster Guitar Effects Pedal - Tube Overdrive
The Valve Wizard
Proposed Tube Pedal Schematic - Music Electronics Forum
STUFF - LOOK MUM NO COMPUTER
Building the Tube Overdrive | SYINSI
StompBoXed - The Guitar Pedal Builders Repository: Westbury W-20 Tube Pedal - 12AX7
The Persuader | Mod Electronics
Tube Distortion Pedal | Electronic Schematic Diagram
A Vacuum Tube Wah Pedal
12AU7 / 12AX7 Tube Preamplifier Schematic
The Valve Caster 2.0: Tube Boost and Overdrive : 7 Steps (with Pictures) - Instructables
preamp - 12AX7 Valve Overdrive/Distortion Effect Pedal - Electrical Engineering Stack Exchange
BAJA Real Tube Drive pedal project - Page 10 - freestompboxes.org
12ax7 with Transformer Pre-amp : Booster/OD guitar pedal | Page 2 | diyAudio
Guitar Amplifiers - Overdrive & Distortion
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
Building the Tube Overdrive | SYINSI
Tube Compressor Pedal Schematic
