Amplifiers
- Bogner Amplification
- Budda Amplification
- Carr Amplifiers
- Divided by 13
- Dr. Z Amplification
- Headstrong Amps *
- Henriksen Amplifiers
- HIWATT Amplification
- Matchless Amplifiers
- Mesa Boogie
- Milkman Sound
- Quilter Guitar Amplifiers
- Rivera Amplification
- Two-Rock Amplifiers
- Victoria Amp Co.
- Vintage Sound Amps
- Vox Amplification Ltd.
Amplifier Kits & Mods
- Amplified Parts
- Billm Audio
- Fender amp mods
- Guitar Amp Kits Directory
- Mojo Tone
- Tone Tubby Speakers
- Warehouse Guitar Speakers
Effects/Accessories
- Fulltone
- JHS Pedals
- Lehle Switchers
- Maxon
- Peterson Strobe Tuners
- Real McCoy Custom
- Geoffrey R. Teese
- Robert Keeley Engineering
- Sonic Research *
- Turbo Tuner
- Toneczar Pedals
- Voodoo Lab
Manufacturers
Miscellaneous
- Buzz Feiten Tuning System
- How to adjust humbucker height for improved tone
- Gibson.com
- Lakota Leathers
- Must-know amp first-aid
- Peter Green’s 1959 Les Paul tone
- Roger Linn Design
- Stewart MacDonald
- Guitar Shop Supply
- Stratocaster Setup Guide
- String Action Gauge
- Ten pickup tricks & tips
- Gibson.com
Pickups/Hardware
- Callaham Guitars
- Replacement parts
- Japanese Guitar Parts
- JBE Pickups
- Joe Barden
- Klein Pickups
- KTS
- Titanium hardware
- Lindy Fralin Pickups
- Seymour Duncan *
- TonePros
- Wilde Pickups
- Bill Lawrence
Retailers
- Analog Man
- Archtop.com
- Corson Music
- Cream City Music
- Eddie’s Guitars
- Elderly Instruments
- Guitars ‘n Jazz
- Humbucker Music
- Music Toyz
- Reverb
- Rock N Roll Vintage
- Sam Ash
- Sweetwater
- The Upper Bout
- Wildwood Guitars
- Willie’s Guitars