Jan Didden created Linear Audio in 2010 and published 14 Volumes between 2010 and 2017. Each 200-page Volume contains on average 10 articles by expert authors in the field of audio, acoustics, and instrumentation. Whether you are interested in tube amplifiers, solid-state equipment, loudspeaker design, capacitor and resistor distortion or distortion measurement, you are certain to find helpful advice and interesting discussions. From beginner to advanced level, for the audio professional or the serious hobbyist, this ExpertCollection will advance your understanding and offer new perspectives on common issues.
Bonus material included with this collection is a 5-part YouTube series on negative feedback as applied to audio by renowned author Jan Didden, and nine additional landmark audio articles and presentations.
If you are seriously interested in audio, acoustics, and instrumentation, you can’t afford to miss this! The published material is indexed and fully searchable and will provide an almost limitless resource for many years to come.
You can read about Linear Audio’s authors, and the Table of Contents of each Volume, at linearaudio.net.
A Toolbox for Audio Lovers and Engineers
Without any ambition to reach scientific levels, this book aims to be a toolbox for both audio lovers and high-end equipment designers. The elementary theory presented is the bare minimum for readers to grasp the operation and practical use of electrical, electromagnetic, physics, and electronic operations available in the designers’ toolbox. Each tool is explained in a minimum of words and theory without needless coverage of underlying equations or figures.
The book chapters guide you through the process of designing quality amplifiers with vacuum tubes, from the very beginning, considering both technical and subjective requirements – in theory and practice.
The book is a compilation of the author’s notes used in his professional and educational career but was nevertheless primarily written as a result of true love for the audiophile hobby.
All you need to know about good acoustics and sound systems in performance and worship spaces!
Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results.
A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform.
This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.
From Detector to Software Defined Radio
Radio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics.
For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here.
But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios.
This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.
More than 475 Audio Circuits from 30 Years of Elektor
This USB Stick contains over 475 different audio circuits from the volumes 1995-2025 of Elektor. The article search feature allows you to search full-text content. The results are always displayed as pre-formatted PDF documents.
Highlights
Surround-sound decoder
Compact amp
Sampling rate converter
Battery powered preamplifier
Titan 2000 amplifier
Crescendo Millennium amplifier
Audio-DAC/ADC
IR-S/PDFI receiver and transmitter
High-End Power Amp
Hi-fi Wireless Headset
Paraphase Tone Control and more…
On the Stick you will also find a folder with additional material such as PCB layouts, Gerber files and software.
Specifications
Storage
16 GB
Interfaces
1x USB-A1x USB-C
System requirements
PC with Adobe Reader 7.0 or higher
Web browser
The intention of this book is to offer the reader understandings, ideas and solutions from the perspective of a workbench technician and electronics hobbyist. It is a descriptive text with many tables of useful data, servicing tips and supplementary notes of not so common knowledge.
Today there is a re-emerging, nostalgic interest in vinyl records and associated music entertainment gear. With this interest, there is a paralleled market for the repair of this gear.
This ‘hands-on’ servicing guide opens with fundamental considerations of the work space of repair and servicing. This includes a comprehensive discussion of essential test equipment and tools. Two chapters are devoted to obtaining servicing information about repair and obtaining spare parts. A key chapter is on general diagnosis and testing and includes the discussion of resistance, capacitance and inductance. These electrical properties are regularly in the mind of the repairer, so understanding of them is a key objective of this book. The next chapter is about time saving repair techniques and ensuring quality repair. The remaining chapters discuss entertainment equipment itself. Each of the chapters begins with an orderly discussion of the theory of operation and common and not so common problems specific to the equipment. All chapters conclude with a summary.
Resonances From Aether Days
A Pictorial and Technical Analysis from WWII to the Internet Age
From the birth of radio to the late 1980s, much of real life unfolded through shortwave communication. World War II demonstrated—beyond a shadow of a doubt—that effective communications equipment was a vital prerequisite for military success. In the postwar years, shortwave became the backbone on which many of the world's most critical services depended every day.
All the radio equipment—through whose cathodes, grids, plates, and transistors so much of human history has flowed—is an exceptional subject of study and enjoyment for those of us who are passionate about vintage electronics. In this book, which begins in the aftermath of World War II, you’ll find a rich collection of information: descriptions, tips, technical notes, photos, and schematics that will be valuable for anyone interested in restoring—or simply learning about—these extraordinary witnesses to one of the most remarkable eras in technological history.
My hope is that these pages will help preserve this vast treasure of knowledge, innovation, and history—a heritage that far transcends the purely technical.
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
PbMonitor v2.0 UpdateBattery Monitoring with Improved Analog Design
Audio Latency MeasurementA Standalone Tool for Evaluating Errors and Latency in Audio Transmission
Square Wave vs. Bode PlotChecking the Performances of an Audio Device
embedded world 2026
Clever Coding with AIAI in Software Development for Electronics Engineers
QA403 Audio AnalyzerAffordable Precision for Audio Professionals and Hobbyists
EasyGimbalAutonomous Camera Tracking with AI, Stepper and Servo Motors
Sigfox Breakout Board (2)Sending Messages
Circuit ProtectionControlling Overvoltages with TVS Diodes
Emerging Battery Testing ApproachesA New Era of Diagnostics
AudiotronicsA First Preamplifier
CANopenTermAn Open-Source Tool That Brings CAN to Makers and Engineers Alike
Stabilization of Operational AmplifiersAvoiding Feedback Instability
Err-lectronicsCorrections, Updates, and Readers’ Letters
Signal ConditioningTips and Tricks to Fit Voltage Ranges
TDR Attachment for OscilloscopesLength, Short Circuit, Mismatch: Measure Cables Using Reflections!
From Life's ExperienceLED It Be
Speaker Oscillator and Resonance TesterA Fully Experimental Project for Your Speakers
Elektor Community Perspectives on Test and Measurement
ESP32 Audio Transceiver Board (Part 5)Audio Processing and Remote Control
2026: An AI OdysseyAI Has a Context Problem
Battery Storage for Balcony Power PlantsSmall Batteries, Big Impact
A Practical Guide to Tube Electronics
Vacuum tubes continue to exert a special fascination. Their long-lasting operation, robustness, and characteristic behavior fundamentally distinguish them from modern semiconductor technology. Despite their age, tubes are by no means merely historical components; they are still used today in audio technology, measurement technology, and especially in hobbyist applications.
This book is aimed at electronics enthusiasts and hobbyists who want to not only learn about and understand vacuum tubes in theory, but also use them in practice. It conveys the fundamentals of tube technology, explains the different designs and designations, shows typical circuits, and addresses power supplies, measurements, and safety-related aspects. The focus is on practical explanations and realistic examples from the workshop. Numerous tips help you avoid typical mistakes, build circuits, and understand tube devices and their construction. Basic knowledge of electronics is assumed.
Vacuum Tubes: A Practical Guide to Tube Electronics offers an accessible and thorough introduction to tube technology – factual, comprehensible, and with a clear focus on practical applications.
A Toolbox for Audio Lovers and Engineers
Without any ambition to reach scientific levels, this book aims to be a toolbox for both audio lovers and high-end equipment designers. The elementary theory presented is the bare minimum for readers to grasp the operation and practical use of electrical, electromagnetic, physics, and electronic operations available in the designers’ toolbox. Each tool is explained in a minimum of words and theory without needless coverage of underlying equations or figures.
The book chapters guide you through the process of designing quality amplifiers with vacuum tubes, from the very beginning, considering both technical and subjective requirements – in theory and practice.
The book is a compilation of the author’s notes used in his professional and educational career but was nevertheless primarily written as a result of true love for the audiophile hobby.
,
by Lobna Belarbi
Top 5 Essential Books Every Engineer Should Own
Discover Elektor’s expertly curated list of the Top 5 Engineering Books — perfect for electronics enthusiasts and professional engineers alike. From mastering fuzzy logic to...
,
by Clemens Valens
Unleashing the Power of the Miniware MHP50: A Compact Hot Plate for Preheating and Reflow Soldering
The Miniware MHP50 isn't just another hot plate for preheating circuit boards—it's a versatile tool that's perfect for reflow soldering on smaller boards. Let’s dive into...