Tube Distortion Pedal - Circuit Scheme
preamp - 12AX7 Valve Overdrive/Distortion Effect Pedal - Electrical Engineering Stack Exchange
Portable Guitar Preamp : 5 Steps (with Pictures) - Instructables
DYI :SWR Interstellar OverDrive IOD (bass preamp)
Schematic I drew up for my dual Maestro EP-2 preamp pedal. Basically two tube echoplex preamps in series with a switch to switch between running just one pre or both in series. :
12AX7 Tube (valve) Preamplifier Kit
preamp - 12AX7 Valve Overdrive/Distortion Effect Pedal - Electrical Engineering Stack Exchange
Overdrive - 12AX7 Tube Pedal – Hagerman Amplification
Alembic F-2B preamp (DIY) | Watersish.com
Coda Effects - Black Hole : Sunn Model T preamp
FET Preamp with LND150 Operates on Tube B+, part 1
A guitar tube preamp circuit schematic. | Download Scientific Diagram
High voltage tube guitar preamplifier with 12AX7 - H&G Amplifiers
Tubehead Pre-amp Circuit Diagram | Electronic Schematic Diagram
DIY tube preamp build part 1 - YouTube
12AU7 / 12AX7 Tube Preamplifier Schematic
Tube pre amp in a pedal box question
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
Soldano Preamp | DIY Fever
STUFF - LOOK MUM NO COMPUTER
Does this preamp schematic make sense? | The Gear Page
FET-2B | Home
Building the Tube Overdrive | SYINSI
Bass Guitar Preamp Pedal DIY : Schematic & PCB Design
Switchable vacuum tubes on a guitar pedal... - General Electronics - Arduino Forum
DIY 12AU7 Tube Preamplifier Project | Valve amplifier, Vacuum tube, Electronic schematics
Guitar Preamp Tone Explained - Effectrode
