Angela Instruments

Armadillo Amp Works

Big Blue Spruce

Fender Musical Instruments Corporation

George L's Cables

Harmony Central

J. Lee Haven - Guitarist Extraordinaire!
J. Lee Haven On MySpace

Heyboer Transformers

Hoffman Amplifiers - Tube Amp Parts

KORG

Loni Specter's Amp Show

Lotus

Mogel's Brew
Mogel's Brew On MySpace

Nashville Music Guide

Parkside Avenue
Parkside Avenue on MySpace

Peavey^® Electronics Corporation

Qwirk

SV Vintage Amps

Tone Quest Report

Vacuum Tube Valley Magazine

Vintage Guitar Magazine