AUDIO ANTHOLOGY SERIES: WHEN AUDIO WAS YOUNG

    This series of 6 books presents articles from the Audio Engineering magazine which detail the history of audio from early vacuum tube days through the advent of the transistor and early work in stereo reproduction. The majority of articles are presented with the constructor in mind.

15% off    All Audio Anthology Volumes         while stocks last

Volume 1                                                124 pages  

Provides a fascinating history of the first audio amplifiers, preamps, tuners, and speakers designed after the long delays caused by the Depression and WWII. 

Volume One of this series features 38 of the best articles which appeared in Audio Engineering magazine from 1947-1950. Heavily illustrated.

Volume 4                                                144 pages

The 34 articles chosen from Audio Engineering magazine between 1955-1957 presented here offer practical advice for the do-it-yourself audiophile. Solid state techniques and circuits are introduced here, along with designs for 12 amps and preamps, and six loudspeakers. Heavily illustrated.

THE AUDIO DESIGNER'S TUBE REGISTER  Vol 1        144 pages

   COMMON LOW POWER TRIODES     

This new reference guide catalogues all the essential parameters of the most popular low  power triodes used in audio (12AT7, 12AU7, 12AX7 etc.). Complete functional graphs  included.

AUDIO MEASUREMENTS   by Norman H. Crowhurst   223 pages 

Famous compendium of measurement and test techniques for audio reproduction equipment of the valve era. Includes discussion of all instruments needed. Covers amplifiers, transformers, pre-amps, turntables, changers, tonearms, cartridges, tape recorders etc.

FIRSTS IN HIGH FIDELITY   by Stephen Spicer        270 pages 

This book is the unique and comprehensive story of one of the world's best high-fidelity audio companies - H.J. Leak & Co. Ltd. The reader is presented with a stunning collection of delights, through a lucidly, extensively researched text, accompanied by over 300 photographs - many of which have been supplied from personal collections. A must for any audiophile is the compendium of 30 circuit diagrams for the classis designs of the day, including some of the rarest model amplifiers and radio tuners produced by the company. This invaluable resource is presented in conjunction with detailed technical information on previously undocumented design variations.

THE LP IS BACK!                by Audio Amateur Corporation        160 pages 

Second Printing. From the pages of Audio Amateur magazine and other sources, absolutely everything the serious LP music collector needs to get the most out of both vintage records or the highest quality new pressings. Articles cover:
 • Cleaning Discs
 • How to build a cleaning machine
 • Calibrating and maintaining your tone arm and cartridge
 • Equipment that will improve the quality of long-play record listening
 Collected from the high point of this old-new again technology, The LP Is Back! brings a wealth of information to help you keep your existing equipment in top form and help you understand and  appreciate the best in new products available from cartridges to turntables. 

 Amplifier Circuits & Designs

AN APPROACH TO AUDIO FREQUENCY AMPLIFIER DESIGN     by GEC (UK)  

First published in 1957 by the GE Company of England, this book covers the essential details and circuit diagrams of a comprehensive range of audio amplifiers from a 5 watt ultra-linear to an 1100 wattt Class AB2 amplifier.  All valve designs.  

 126 pages

BUILD YOUR OWN AUDIO VALVE AMPLIFIER    by Rainer zur Linde   251 pages 

 Whether it is nostalgia, interest in technical parameters, the appeal of a gleaming amplifier     chassis with softly glowing valves or the conviction that valve sound cannot be bettered, interest in building your own valve audio equipment is growing. This book includes construction projects for pre-amps, power amps and musical instrument amps.

BUILDING VALVE AMPLIFIERS    by Morgan Jones    386 pages 

A practical guide to building, modifying, fault-finding, and repairing valve amplifiers. Jones uses a hands-on approach to explain classic and modern valve electronics with a minimum of theory. Full projects to build complete with step-by-step instructions. Emphasizes the practical side of amplifier construction.

ELECTRONIC CIRCUIT ACTION SERIES:  by Thomas M. Adams CD-ROM 

CD-ROM reproduction of this highly informative book. Using four-colour diagrams, Adams helps you visualize the actions that take place inside amplifier circuits. Includes circuit fundamentals and analysis of basic AF and RF circuits. Using nonmathematical and logical explanations, he discusses the movements shown by colour in the diagrams and  then discusses these movements and explains their significance in overall circuit operation. Questions are included to reinforce your understanding as you progress through the text. This second edition published 1966 originally 136pp. CD-ROM published 2001.  Read review (pdf file)

GEC AUDIO AMPLIFIERS - Data and Design  KT66 & KT88  93 pages 

Reprint of valve data and suggested amplifier designs from the most elegant and sophisticated of the British valve manufacturers. Ultra-Linear amplifier schematics (30 & 50W) for the KT66 are provided with performance charts and parts lists. KT88 UL designs include 30, 50 & 100 watts plus a 100W Class B, as well as multiple pair push/pull circuits. Read review (pdf file)

MODERN HIGH-END VALVE AMPLIFIERS                      NEW!

by Ir. Menno van der Veen    250 pages - hardcover

Explains the whys and wherefores of toroidal output transformers at various technical levels, starting with elementary concepts and culminating in complete mathematical descriptions, all the while keeping the interactions of the output valves, transformer and loudspeaker as the central theme. The book offers innovative solutions for achieving the best in audio quality.

MULLARD TUBE CIRCUITS FOR AUDIO AMPLIFIERS                136 pages

A reprint of a 1959 publication of Mullard UK with high quality circuits and plans for audio amplifiers, pre-amplifiers etc. Full notes on construction and assembly. Includes the two most famous Mullard circuits that were the forerunners of many well-known vintage and current-day amplifiers - the "5-10" using push-pull EL84s and the "5-20" using ultra-linear EL34s.

POWER AMP PROJECTS  from Audio Amateur Magazine       205 pages

26 articles on Power Amplifier Projects appearing in the Audio Amateur Magazine from 1970-1989. Re-printed articles on amplifiers for the home (both tube and solid state), amplifiers for a car and even an electrostatic speaker system. Original designs as well as upgrades to older equipment. Altogether, this book offers designs from authors from six countries to fit almost any need for the resourceful amateur who prefers the pleasure of building his or her own.

PRACTICAL AMPLIFIER DIAGRAMS                                   55 pages  

45 Proven Circuits for the Technician and Experimenter

This is a re-print of a 1947 publication containing 45 amplifier circuits using from 1 to 11 tubes. Amplifier types include microphone, DC-coupled, expander/compressor, transformerless, Hi-Fi, Modulator and PA to name but a few. 55 pages of circuits and information on trouble-shooting to help you de-bug your amplifier.

PRINCIPLES OF POWER       by  Kevin  O’Connor                  368 pages  

Practical Guide to Tube Power Amplifier Design   This book offers a highly simplified method of designing tube power amplifiers for audio use. Vacuum tube operation is clearly explained, as are circuit principles. Class A, B ,Cathode and Fixed bias are covered, push-pull and single ended designs are offered, as are numerous front-end circuits. Includes complete designs  using current production valves. Power from 15 to 400 watts.

RADIOTRON DESIGNER’S HANDBOOK  by F Langford-Smith  CD-ROM 

The complete 4th edition (1,498 pages) on CD-ROM. The ultimate repository of valve  theory and practice. Covers design and application of radio receivers and audio amplifiers. Extensive cross references. Includes Adobe Acrobat access software. 

READY SET GO!   by Kevin O’Connor                                                84 pages     

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, SI symbols and tolerances, resistor and capacitor colour codes,  values and standards. Explains current, voltage, power, resistance, capacitance and inductance. Covers Ohm’s Law and how to figure out series/parallel resistance, capacitance and inductance. 

THE JOY OF AUDIO ELECTRONICS by Charles Hansen      136 Pages

Here it is! The book to start you on the exciting and fulfilling voyage to building your own audio! Never soldered before?...Don't worry, Hansen explains the process and the potential pitfalls. Hansen's easy approach to this sometimes intimidating world begins comfortably. Starting with a project, Hansen walks you through every step to building a simple speaker overload indicator. Even the circuit boards for the first project in the book are included. Best of all, Hansen lists every source of parts, tools, information, and supplies the amateur needs to succeed. Finally, he concludes with a brilliant, short introduction to electronic theory--and where to go from there if you wish.

TUBE AUDIO DESIGN - The Beginners Guide      by Bruce Rozenblit   

Are you interested in tube audio but don’t know where to start, or are you already using tubes but don’t know what’s going on in the circuit? This book describes with simple clear explanations what a tube is, how it works, how to read characteristic curves and understand specifications. Discusses one stage amplifiers, gain circuits, negative feedback, power supplies as well as a tour of amplifier parts of all types. Gives you the complete picture of tube audio design including chapters on stabilization and testing, how to work effectively as a designer, and descriptions of 13 classic amps and preamps. Tips on construction tools and choosing components and tubes are included.

UNDERSTANDING HI FI CIRCUITS   by Norman Crowhurst   224 pages  

Progressing from the assumption that absolute perfection in audio circuitry is impossible, Crowhurst discusses the relevant design choices involved in a selected class of audio components and how to reach a balance of design compromises. Includes chapters on the power amplifier output stage (which Crowhurst believes is the most important audio ingredient), feedback, matching, input stages, equalization issues, and the difficult issue of loudspeakers and their crossovers. This book will help you get a full grasp of audio issues that matter and to make informed decisions about your system's components.   

VALVE AMPLIFIERS    by Morgan Jones         LATEST EDITION       

3rd Edition. Recognized as the most complete guide to valve amplifier design, Jones takes you through each step in the process of design, starting with a brief review of electronic fundamentals relevant to valve amplifiers, simple and compound stages, linking stages together, and complete designs. Jones presents the essentials of 'hollow-state' electronics for engineers and enthusiasts using only currently available components. This book is ideal for those with a limited knowledge of the field as well as being the standard reference text for experts. Provides circuits and comments on classic amplifiers such as: Williamson, Mullard 5-20 and Quad II. Includes photographs and diagrams. Have a look at the contents and see just how much this book covers!!

VALVES FOR AUDIO FREQUENCY AMPLIFIERS by E Rodenhuis  144 pages 

Reprint of a Philips 1954 book. Encourages experimentation with design elements, not just work from a schematic. Covers hints on amplifier design, the use of valve data and functions of various amplifier stages. Includes detailed descriptions of eight amplifier designs.

THE WILLIAMSON AMPLIFIER  on CDRom      

This new edition features all the articles written about the famous Williamson Amplifier, along with a set of amplifier designs published by the Partridge Transformer Company.

Great for anyone who loves vacuum tube audio!

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