Design rules are given for the five output stage topologies, with pointers regarding power output and tone. Where the first volume of TUTapproached tube power amplifiers assuming that the reader already had one and wanted to understand its operation and modify it, TUT2 is aimed at those who want to design an amp from scratch. The book highlights the importance of screen supplies and stand-bys, and a variety of DC heater circuits are presented to bring to light both old and new ideas. Bias “fixes” for many popular amplifier models are provided. The three common bias procedures are thoroughly discussed with all relevant issues exposed and diffused. TUT2 illustrates and explains bias supplies of all types. Variacs, boost/buck transformer connections, zener diode and variable impedance rectification are presented, with their impact on performance and tone. Variable, tracking, fixed and proportional regulators are explained, along with the consequences of their use in “live” situations, comparing AC and DC controlled circuitry. Inherent regulation of transformers and active tube, mosfet and bipolar regulators are discussed.
Transformers, rectifiers, capacitive and choke filters are studied, and the issues of regulation are detailed. The extensive “Power Supply Tricks” chapter explores concepts of power. Modular monitoring systems and local vocal PAs are also examined, allowing the singer to explore the use of tube equipment and effects. The role of the sound man is explored with an eye to the evolution of PA and monitoring systems. Harmony within the player is emphasized as the foundation of harmony within a band and on stage. TUT2 builds upon the formidable knowledge base of TUT, adding new depth to previously explored topics while introducing completely new subjects. And there’s quite a lot of information here, so get your coffee before you read the description below!
“Toneful” power supply mods, high-gain preamps, EQs, electronic cross-overs, speaker simulation, compressors and useful switching circuits are all investigated.ĭespite its subtitle, this volume is very popular with all players and hobbyists, from on-stage music pros to basement tinkerers. Everything you need to know about bias methods, myths and circuits is here.
TUT2 reveals how to design tube, solid-state and hybrid power amplifiers for guitar and bass. “All the world’s a stage”, so why not have great sound every time you play. 2 – Systems Approach to Stage Sound Nirvanaīy Kevin O’Connor, ©1997, ISBN 0-9698-6083-8Ģ52 pages, 8½” x 11″, spiral bound with clear protective covers 283 figures (schematic diagrams)ĭeciding which TUT volume to purchase first (next)? See our TUT Selection page. Cathode-Bias/Fixed-Bias Switching in Tube Power Amps.RBX Raw Bias Auxiliary Supply – When Do You Need It?.Power Scaling for Tube Amplifiers – Q&A.
Independent Reviews of The Ultimate Tone Book Series.Hammond Transformers for Tube Audio Amplifiers.