The Ultimate Tone, Volume 1, Modifying & Building Tube Amps
by Kevin O'Connor
This is the book that jump-started the boutique tube guitar amp business. Learn the truth about tube preamp design and modification; see how tube power amps work and can be made more reliable; see how reverbs and effects loops work and better ways to configure them; learn why some amp brands are easier to service and to mod than others; see how simple switching circuits are but how capable they can be. Tube data for the common types used in guitar and bass amps is provided, along with a discussion of stage set-up and player ergonomics. Spiral bound, 395 figures. 368 pages, 2.5 lbs, 8.5" x 11"
The Ultimate Tone, Volume 4, Advanced Methods for Amp Design
by Kevin O'Connor
Outlines, in schematic form, many approaches that achieve the goal of power scaling, super scaling and power management. A complete history and discourse on the technology outlines how to implement multiple power scale controls, alternative circuit forms and system impacts. Further tutorials outline the methods for super scaling, with both fixed and variable boost ratios, using both solid-state and tube methods.
Principles of Power, A Practical Guide to Tube Amplifier Design
by Kevin O'Connor
This book offers a simplified method for designing tube power amps for audio. Tube operation is explained, as are circuit principles. Class-A or B, cathode, fixed bias, and push-pull and single-ended designs are covered, as are many front-end circuits. Includes designs using off-the-shelf transformers and current production tubes. Power outputs of 15 to 400W are depicted using pentodes and true triodes. Also, covers power supplies, selected tube data, and information on Hammond and Plitron transformers. Guitar amp builders please refer to "The Ultimate Tone Vol. 2"
Guitar Player Repair Guide, 3rd Edition with DVD
by Dan Erlewine
This revised edition is a step-by-step manual to maintaining and repairing electric or acoustic guitars and basses. Players will master the basic maintenance and set up of a guitar. An advanced crafts-person will discover this to be a valuable reference source for complex procedures such as replacing nuts and frets. This third edition incorporates new techniques and tools, plus detailed repair information for specific models.
The Ultimate Tone, Volume 2, Systems Approach to Stage Sound
by Kevin O'Connor
The achievement of great, live sound is the premise used to explore modern high-gain guitar pre-amps, proper treatment of acoustic instruments, tube vocal PAs; dynamic bass gear, all types of tube, semi, hybrid and alternative power amplifier design, power supply mods that are "toneful", simple switching methods, speaker cabinet design, getting the most from effects loops and chains, and, modular stage monitoring systems that work!
The Fender® Bassman 5F6-A, 3rd Edition
by Richard Kuehnel
This book examines this famous amplifier by studying its circuit design in great detail. It starts by breaking the amplifier into its major components: the 12AY7 preamp, the 12AX7 voltage amp, the 12AX7 cathode follower, the tone stack, the long-tailed-pair phase splitter, the push-pull power amplifier, and the power supply. Each component is analyzed to determine how it works and to derive the design formulas needed to predict its performance. The results are then compared to bench tests of the actual circuit. Finally all of the components are put together to analyze total system behavior and to discover how and where the amp transitions into distortion.
Ready Set Go! An Electronic Reference for the Everyman
by Kevin O'Connor
A handy reference for the novice electronic tinkerer and experienced craftsman alike. Informative and easy to read, the book
  • explains how to read schematic symbols
  • explains standard notation, S.I. symbols and tolerances
  • reveals the resistor color code
  • lists standard resistor values for 1%, 5%, 10% and 20% components
  • lists standard capacitor values and explains the colour coding of vintage caps
  • explains current, voltage, power, resistance, capacitance and inductance
  • explains Ohm's Law and how to figure out series/parallel resistance
  • transformers and impedance are clearly explained

Examples are worked out throughout the book to illustrate how truly simple basic electronics is!
Most Often Needed Radio Diagrams, Volume 1
by M. N. Beitman
Radio Diagrams and Servicing Information from 1926 to 1938. Shows circuit diagrams for 600 of the most commonly found radios of that time. A valuable resource for restorations.
DIY Speaker Cabinets for Musical Instrument Applications
by Kevin O'Connor
Speaker cabinet design is mysterious to most people, but it doesn't have to be - especially when it comes to speakers for musical instruments. Cabinet evolution is described culminating in Kevin's own designs built by London Power, based on 20+ years of experience and input from expert speaker designers. Resonant and non-resonant cabinets are explored, along with the choice for building materials, finishes, woodworking techniques, installing grill cloth, and the use of wheels and handles. Driver selection and mixing is detailed, covering driver impedance, power ratings and wiring.
Guitar Amplifier Electronics: Basic Theory
by Richard Kuehnel
This book presents vacuum tube amplifier theory using modern, web-based design tools and computer visualizations to eliminate the usual litany of mathematical formulas. The book begins with the fundamentals of electronics and vacuum tubes. It then proceeds through each stage of a modern guitar amplifier, including preamp voltage amplification stages, cathode followers, tone stacks, power amps, phase inverters, and power supplies. The final chapter is devoted to the craft of controlling overdrive dynamics and harmonic distortion.