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Vacuum tube fundamental circuit design written for the novice interested in vacuum tube amplifier construction. A brief concise book covering several factors of circuit design including bias requirements, voltage gain requirements and power supply requirements.To help understand circuit operation rather than use traditional schematic drawings pictorial illustrations are used. In several sections circuit operation is demonstrated using illustrations along with a vacuum tube breadboard. Experiments are used to correlate circuit design to actual working circuits.Circuit calculations involving fundamental electronic formulas can be performed using a standard twelve digit calculator. Examples of how to solve calculations are provided. Basic electronic knowledge of voltage, current and ohms law related to vacuum tube circuit design is included where appropriate.The 70+ pages of circuit design contain enough information to design high quality vacuum tube amplifier circuits. The last few pages of the book have related information including how to use sound pressure levels to determine amplifier power required to produce desired loudness.
This book is a beginner's guide that brings you, from the basic concepts of vacuum tubes, up to the design of a complete integrated push-pull vacuum tube amplifier.This book first introduces the needed principles, to designing and understanding vacuum tube amplifiers. Then, it considers all relevant aspects for designing an integrated push-pull vacuum tube amplifier, including the power supply unit. Finally, a real integrated push-pull vacuum tube amplifier is designed from scratch, using the various concepts discussed in this book.This book makes an extensive use of figures and proposes several practical examples, to design various parts of the circuits and to compute values of the needed components. This significantly contributes to simplify some possibly difficult concepts addressed.The book is structured as follows: Chapter 1: "Introduction" introduces the book itself and gives some suggestions on how to read it.Chapter 2: "Vacuum tube basics" introduces the needed concepts to understand vacuum tubes. This is a very basic introduction needed for the non-initiated. If you already know what vacuum tubes are and how they operate, you can skip this chapter.Chapter 3: "Vacuum tubes as amplifiers" discusses how vacuum tubes can be used to obtain an amplifier. It introduces the concepts of operating conditions, loadline, biasing techniques, and amplifier classes.Chapter 4: "Integrated push-pull vacuum tube amplifier" goes into the details of designing an integrated push-pull vacuum tube amplifier. It discusses the single-ended and push-pull configurations, the various needed stages (power, phase-split, and input stages), and global negative feedback.Chapter 5: "Power supply unit" discusses how to build the power supply unit for a vacuum tube amplifier. It introduces rectifier configurations and filters to reduce voltage ripple, to have a quiet amplifier. It explains how to estimate expected output DC voltage, ripple, and current delivered. It also discusses how to design power supply for the fixed bias circuit and for the filaments of the vacuum tubes.Finally, Chapter 6: "Step by step design of a push-pull tube amplifier" use all needed notions to design an entire integrated push pull vacuum tube amplifiers. It discuss the design of the power stage, the phase-split, and the input stage. It discusses the design of the global negative feedback loop. It also provides the design of the corresponding power supply unit
"The most comprehensive and up to date text on vacuum tube audio currently available"--Page 4 of cover.
"Written for electronic engineers and professional amp builders, Guitar Amplifier Preamps moves beyond simplistic advice and cookbook solutions to present a complete guide to the theory and operation of triode and pentode voltage amplification"--P. 4 of cover.
Discover (or rediscover) the fun and magic of building electronic circuits with thermatrons (vacuum tubes). This book has everything you need to know about the art and science of thermatron design and construction. It pulls together, in one easy to read book, thermatron types and characteristics, thermatron homebrew techniques, and how to design audio and RF triode and pentode circuits. The book is written primarily for radio amateurs (or audio equipment builders) that already understands basic electronics but have forgotten or never had the pleasure of working with hollow-state devices. The Second Edition includes over 50+ pages of new and revised material including a new chapter on thermatron oscillator design.
THE TUBE AMP BOOK WITH AUDIO ONLINE ERRATA SHEET ADDED.
This book is written for electronic hobbyist interested in working with vacuum tube circuits. A wide range of reference material related to vacuum tubes and audio are concise with examples and illustrations.Principles of vacuum tube operation includes function of grids, effect of tube capacitance, tube resistance, heat dissipation and voltage gain. A table of component values for the popular 12AX7 in various operating parameters simplifies amplifier stage design. Power supply sections cover vacuum tube and solid state rectifier conversion of AC to DC and DC filtering. A sample power supply is used to explain calculating loads, determining required transformer ratings and component values. Includes high voltage, bias and filament supplies.For the novice not versed in electronics several sections cover electronic basics. Includes how capacitors work, voltage, current, ohms law and reading circuit drawings.Working with electronics and vacuum tube circuits requires some math. Circuit calculations in this book use various forms of addition, subtraction, multiplication and division. Formulas are all solvable using a standard 12 digit calculator. Calculations are presented with examples.The last part of the book has amplifier project circuits with parts list and component layout drawings. Projects include a line amplifier with 25db gain, triode balanced-unbalanced input stage, tone control stage, turntable pre-amplifier, 6V6SE Class A stereo amplifier, 6V6SE Class A monoblock amplifier, 30 watt monoblock amplifier and a 5 watt guitar amplifier with adjustable overdrive. The 30 watt monoblock amplifier is designed for tube rolling using various type output tubes.Current version of book was updated in April of 2017.
Incorporate the "tube sound" into your home audio system Learn how to work with vacuum tubes and construct high-quality audio amplifiers on your workbench with help from this hands-on, do-it-yourself resource. The TAB Guide to Vacuum Tube Audio: Understanding and Building Tube Amps explains tube theory and construction practices for the hobbyist. Seven ready-to-build projects feature step-by-step instructions, detailed schematics, and layout tips. You'll also find out how to tweak the projects, each based on a classic RCA design, for your own custom-built amps. Coverage includes: Principles and operational theory behind vacuum tubes Tube nomenclature, applications, and specifications Circuit layout, connections, and physical construction Finding and selecting the right components for the project Power supplies for vacuum tube circuits Preamplifier and power amplifier circuits Performance measurement Safety, maintenance, and troubleshooting techniques Tips on building your own tube-based system—and having fun in the process This book is intended for hobbyists interested in adding the tube sound to any audio system. (Readers looking for high-performance audiophile books are urged to consider the McGraw-Hill books by Morgan Jones.) Learn more at www.vacuumtubeaudio.info Make Great Stuff! TAB, an imprint of McGraw-Hill Professional, is a leading publisher of DIY technology books for makers, hackers, and electronics hobbyists.
(Book). Explores all manufacturers and de-mystifys the inner workings of tube amps. All new material from the amp guru Gerald Weber. Tons of empirical data that de-mystify the inner workings of tube amps to help you get the most from your amps! You will learn how tube amps work, electronic concepts, how different types of tubes work, the anatomy of a gain stage, how to resurrect a dormant tube amp, how to do a cap job correctly, modifications to preserve your amp, how to voice an amp and tune the reverb, how to build an amp, recover a cabinet, re-grill a baffleboard, how to buy a vintage amp; and common wiring mistakes and idiosyncrasies found in vintage amps. And you get a couple of hundred pages of Questions and Answers sectioned off into Fender, Gibson, Marshall, Danelectro/Silvertone, Vox, Other American, Other British and Miscellaneous Topics. You will learn the six dreaded tone killers and how to avoid them, the top ten amp-tone tips, and how to fine-tune your entire amp setup. In short, you will have the knowledge needed to squeeze your amp's performance from lame to insane.