A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
Tube Distortion Pedal | Electronic Schematic Diagram
StompBoXed - The Guitar Pedal Builders Repository | Amplificador, Pedais de guitarra, Amplificador de áudio
Blackbird Vacuum Tube Preamp for guitar - Effectrode
DIY Custom Tube Preamp - YouTube
Sortaflex: D.I.Y. Tube Bass Preamp | T. Hallenbeck
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
Alembic F-2B preamp (DIY) | Watersish.com
Soldano Preamp | DIY Fever
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
DIY tube guitar overdrive PCB - fully assembled | Reverb
Sortaflex: D.I.Y. Tube Bass Preamp | T. Hallenbeck
Laval Audio - All-tube guitar/bass mini-preamp stompbox - YouTube
4S Universal Preamplifier for 12A*7 Tubes
Sortaflex: D.I.Y. Tube Bass Preamp | T. Hallenbeck
diy tube preamp for guitar? | diyAudio
Solid State Amp/Preamp Pedal — Acorn Amplifiers | Tube Amplifiers, Boutique Amps, & Effects Pedals
Portable Guitar Preamp | Diy guitar amp, Guitar pedals, Diy guitar pedal
Blackbird Vacuum Tube Preamp for guitar - Effectrode
My DIY Soldano SLO tube preamp (with plans and demo) | Ibanez JEM Forum
Tube Preamp Pedal (Update) : r/diypedals
12au7 guitar preamp – FrogPedals.com
12AX7 Tube (valve) Preamplifier Kit
Turn a Solid State Amplifier into a "Tube Amp" with a Tube Pedal?! - YouTube
DIY Guitar Tube Preamp Build and Demo (Super EASY!) - YouTube
Guitar Pedal X - GPX Blog - Drunk Beaver's Trainer TS-15 Preamp Perfectly Captures that Small Amp Dynamics and Punchy Character
12AX7 Tube (valve) Preamplifier Kit
