Audio Tests & Measurements: How to Test Electronic Components, Audiophile & Guitar Amplifiers and Loudspeakers Using Modern and Vintage Test Instr


Book Description

Learn how to measure various parameters of hi-fi and guitar amplifiers & preamps: gain, input sensitivity, output power, harmonic and IM distortion, S/N ratio, crosstalk, input & output impedance, damping factor, frequency range, internal AC & DC voltages and waveforms, phono stage equalization accuracy and much more.




High Frequency Measurements and Noise in Electronic Circuits


Book Description

This ready reference provides electrical engineers with practical information on accurate methods for measuring signals and noise in electronic circuits as well as methods for locating and reducing high frequency noise generated by circuits or external interference. Engineers often find that measuring and mitigating high frequency noise signals in electronic circuits can be problematic when utilizing common measurement methods. Demonstrating the innovative solutions he developed as a Distinguished Member of Technical Staff at AT&T/Bell Laboratories, solutions which earned him numerous U.S. and foreign patents, Douglas Smith has written the most definitive work on this subject. Smith explains design problems related to the new high frequency electronic standards, and then systematically provides laboratory proven methods for making accurate noise measurements, while demonstrating how these results should be interpreted. The technical background needed to conduct these experiments is provided as an aid to the novice, and as a reference for the professional. Smith also discusses theoretical concepts as they relate to practical applications. Many of the techniques Smith details in this book have been previously unpublished, and have been proven to solve problems in hours rather than in the days or weeks of effort it would take conventional techniques to yield results. Comprehensive and informative, this volume provides detailed coverage of such areas as: scope probe impedance, grounding, and effective bandwidth, differential measurement techniques, noise source location and identification, current probe characteristics, operation, and applications, characteristics of sources of interference to measurements and the minimization of their effects, minimizing coupling of external noise into the equipment under test by measurements, estimating the effect of a measurement on equipment operation, using digital scopes for single shot noise measurements, prediction of equipment electromagnetic interference (EMI) emission and susceptibility of performance, null experiments for validating measurement data, the relationship between high frequency noise and final product reliability. With governmental regulations and MIL standards now governing the emission of high frequency electronic noise and the susceptibility to pulsed EMI, the information presented in this guide is extremely pertinent. Electrical engineers will find High Frequency Measurements and Noise in Electronic Circuits an essential desktop reference for information and solutions, and engineering students will rely on it as a virtual source book for deciphering the "mysteries" unique to high frequency electronic circuits.




How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers


Book Description

The only book exclusively dedicated to vacuum tube (valve) testers. Design, functionality, calibration and modifications of testers by B&K, Hickok, Triplett, Mercury, Sencore, Weston, Simpson, AVO, Taylor, RCA, Precise, Precision, Eico, Jackson, Sylvania, Knight, Heathkit, Seco, Sico, Conar, Metrix and other brands are covered in detail.




Troubleshooting and Repairing Power Tools


Book Description

Implements covered range from cordless screwdrivers, hand drills, sanders, grinders, and glue guns to routers, saws, drill presses, shapers, lathes, and electric mowers. Instructions accompanied by clear, hand-on-tool photographs.




Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading


Book Description

The most complete and practical modern reference on audiophile vacuum tube technology! Destined to become a true classic in its field, this unique DIY design & construction manual presents the theory and practice of amplifier design & construction in a balanced way. For those who dislike formulas and want proven, practical, ready-to-build designs, dozens of such commercial, tried & tested circuits are explained and analyzed. Just get your soldering iron ready and start building! Absolute beginners will benefit from the methodological approach, starting with DC circuits, then moving into AC voltages and currents and their circuits. The first few chapters of Volume 1 are a complete training course in fundamentals of electronics. Although the focus is on audiophile or "hi-fi" vacuum tube amplifiers, those interested in tube guitar amps will also benefit from the wealth of material presented, most of which directly applies to tube guitar amps as well. Apart from various audio circuits, electronic components, power supplies and tests & measurements are also covered in depth. Even tube testing and tube testers are discussed at great length, as is troubleshooting, repairing and modifying (upgrading) tube gear. The advanced topics that other books don't even mention, such as audio transformer design, construction and testing, make this reference manual a valuable addition to your technical library. For those familiar with solid state devices, such as bipolar transistors and FETs, an easy and seamless transition into tube technology is provided in the book, which adopts a unifying approach to amplification and rectification devices, be they of solid state or vacuum tube kind. This practical DIY manual is richly and professionally illustrated with photographs of tubes, components and amplifiers, circuit diagrams, tube pinouts, curves and loadlines, graphs and charts. Hundreds of such valuable illustrations make it easy to comprehend issues. There is no need to search for, download and print such information, saving you valuable time. All the information required to design and build tube amplifiers is compiled in one place. Who is this book for? Audiophiles and guitar players wanting to learn how tubes and tube amplifiers work. DIY constructors who wish to take their knowledge and building skills to a higher level. Buyers and sellers of tubes and tube equipment who need a better understanding of tube technology. Electronic technicians and engineers familiar with solid state devices and circuits, who want to expand their knowledge of tubes and their circuits. Anyone who wants to learn how to design, build, test, fix, or upgrade tube gear. Contents of Volume 1: WHO WILL BENEFIT FROM THIS BOOK AND HOW BASIC ELECTRONIC CIRCUIT THEORY ELECTRONIC COMPONENTS AUDIO FREQUENCY AMPLIFIERS PHYSICAL FUNDAMENTALS OF VACUUM TUBE OPERATION VOLTAGE AMPLIFICATION WITH TRIODES - THE COMMON CATHODE STAGE OTHER VOLTAGE AMPLIFICATION STAGES WITH TRIODES TETRODES AND PENTODES AS VOLTAGE AMPLIFIERS FREQUENCY RESPONSE OF VACUUM TUBE AMPLIFIERS IMPEDANCE-COUPLED STAGES AND INTERSTAGE TRANSFORMERS NEGATIVE FEEDBACK TONE CONTROLS, ACTIVE CROSSOVERS AND OTHER CIRCUITS PRACTICAL LINE-LEVEL PREAMPLIFIER DESIGNS PHONO PREAMPLIFIERS SINGLE-ENDED TRIODE OUTPUT STAGE PRACTICAL SINGLE-ENDED TRIODE AMPLIFIER DESIGNS PRACTICAL SINGLE-ENDED PSEUDO-TRIODE DESIGNS SINGLE-ENDED PENTODE AND ULTRALINEAR OUTPUT STAGES"




Audio Power Amplifier Design


Book Description

This book is essential for audio power amplifier designers and engineers for one simple reason...it enables you as a professional to develop reliable, high-performance circuits. The Author Douglas Self covers the major issues of distortion and linearity, power supplies, overload, DC-protection and reactive loading. He also tackles unusual forms of compensation and distortion produced by capacitors and fuses. This completely updated fifth edition includes four NEW chapters including one on The XD Principle, invented by the author, and used by Cambridge Audio. Crosstalk, power amplifier input systems, and microcontrollers in amplifiers are also now discussed in this fifth edition, making this book a must-have for audio power amplifier professionals and audiophiles.







Transformers for Tube Amplifiers: How to Design, Construct & Use Power, Output & Interstage Transformers and Chokes in Audiophile and Guitar Tube Ampl


Book Description

The only practical transformer design & construction manual in English language, 40+ designs (winding diagrams) of power, output & interstage transformers, filtering, grid & anode chokes. Covers physical fundamentals of magnetic circuits & transformers and makes design easy by using simple rules-of-thumb formulas to keep calculations to a minimum.




Sound Improvement Secrets For Audiophiles


Book Description

BOOK DESCRIPTION: Avoid the hit-and-miss approach and stop wasting money on overpriced high-end products in the blind hope of sonic improvement. Achieve the ultimate audio synergy and get more enjoyment from your audio system by making it as good sounding as possible. "Sound Improvement Secrets for Audiophiles" will teach you how things work, why some circuits, designs, and technologies sound the way they do, and how to make them sound even better through simple modifications and improvements. It is like having an audio and acoustic consultant by your side to guide you through optimizing and voicing your audio system and your listening room. While relatively technical and in-depth, this practical manual goes way beyond "a dozen quick tips" and the simplistic advice you read elsewhere. Instead, the focus is on dozens of DIY projects, case studies, and examples of commercial audio components - turntables, preamplifiers, amplifiers, loudspeakers, power supplies, and acoustic treatments. With over 400 photographs, diagrams, and illustrations, "Sound Improvement Secrets for Audiophiles" makes it easy for you to understand and comprehend complex technical concepts and issues. The author does not shy away from many controversial and hotly debated topics. Tubes vs transistors, objectivists vs subjectivists, measurements vs listening, and digital vs analog: all of these are discussed in detail. The money invested in this book would not even buy you a budget-priced pair of cables: it will prove to be one of the best financial investments you ever make. Even if you implement only a few improvements from the hundreds described within its pages - you will never look back! BOOK CONTENTS: 1. WHY YOU SHOULD READ THIS BOOK AND HOW YOU WILL BENEFIT FROM IT 2. BEFORE YOU BUY AN AUDIO SYSTEM OR COMPONENT - THINGS TO DO & MISTAKES TO AVOID 3. WHAT DO WE LISTEN FOR AND WHAT DO WE ACTUALLY HEAR? 4. CLEANING UP THE POWER SUPPLY TO REDUCE NOISE, HUM, AND INTERFERENCE 5. CABLES, FUSES, CONTACTS, AND CONNECTIONS 6. UPGRADING & FINE-TUNING THE SOURCES: OPEN REEL RECORDERS, TURNTABLES, PHONO STAGES AND CD PLAYERS 7. AUDIO AMPLIFIERS - HOW THEY WORK AND HOW TO IMPROVE THEIR SOUND 8. HEADPHONES AND HEADPHONE AMPLIFIERS 9. LOUDSPEAKER TYPES, TESTS, AND IMPROVEMENTS 10. COMPONENT MATCHING AND AUDIO SYSTEM INTEGRATION ISSUES 11. LOUDSPEAKER POSITIONING 12. OPTIMIZING THE ACOUSTIC PERFORMANCE OF YOUR LISTENING ROOM 13. ACOUSTIC TREATMENTS 14. MINIMIZING UNWANTED VIBRATIONS & OSCILLATIONS 15. TROUBLESHOOTING YOUR AUDIO SYSTEM THE AUTHOR: Igor S. Popovich is the author of "Audiophile Vacuum Tube Amplifiers" Volumes 1, 2, and 3, and five other bestselling books on audio transformers, tests & measurements, tube testers, and other audio-related topics. An Australian audio designer with over 35 years of experience and a passionate life-long audiophile, he shares his vast know-how with you in this unique and practical manual.




Building Valve Amplifiers


Book Description

Building Valve Amplifiers is a unique hands-on guide for anyone working with tube audio equipment--as an electronics hobbyist, audiophile or audio engineer. This 2nd Edition builds on the success of the first with technology and technique revisions throughout and, significantly, a major new self-build project, worked through step-by-step, which puts into practice the principles and techniques introduced throughout the book. Particular attention has been paid to answering questions commonly asked by newcomers to the world of the valve, whether audio enthusiasts tackling their first build or more experienced amplifier designers seeking to learn about the design principles and trade-offs of "glass audio." Safety considerations are always to the fore, and the practical side of this book is reinforced by numerous clear illustrations throughout. The only hands-on approach to building valve and tube amps--classic and modern--with a minimum of theory Design, construction, fault-finding, and testing are all illustrated by step-by-step examples, enabling readers to clearly understand the content and succeed in their own projects Includes a complete self-build amplifier project, putting into practice the key techniques introduced throughout the book