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Ist es möglich, Fehler in Röhren und Ausgangstrafos spürbar zu kompensieren? Im vorigen Jahrhundert wurden sehr viele Maßnahmen zum Erreichen dieses Ziels entwickelt. Eine dieser Methoden ist in Vergessenheit geraten: Transkonduktanz, was soviel bedeutet wie „Umsetzung von Strom in Spannung” und umgekehrt. Autor Menno van der Veen hat diese Methode wieder zum Leben erweckt und gab ihr den Arbeitstitel „Trans”. Die Hintergründe und Eigenschaften werden genau so sorgfältig beschrieben wie die Fallstricke dieses Verfahrens, die Schritt für Schritt eliminiert werden. Dies führt letztlich zu einer Liste strenger Bedingungen, die von Trans erfüllt werden müssen. Mit diesen Geräten entwickelt er neue Trans-Verstärker, die mit Trans-Mini-1 und Trans-Mini-2 beginnen. Dabei handelt es sich um einfach nachzubauende, DC-gekoppelte Single-Ended-Röhrenverstärker mit ungeahnt guten Eigenschaften. Anschließend wird Trans an Verstärker mit höherer Leistung angepasst. Durch abwechselnde Rückschläge und Erfolge schließlich entsteht der Vanderveen-Trans-30, in welchem das Gute des Trans noch weiter verbessert wurde. Die besonderen Eigenschaften dieses Verstärkers waren es, die Menno van der Veen schließlich zu der Aussage bewogen, „Gold” in seinen Händen zu halten. Mittels Simulation und Vergleich mit anderen Verstärkertypen werden die Trans-Bedingungen erneut überprüft, um sicher zu stellen, dass Abweichungen in den Röhren das optimale Verhalten von Trans nicht beeinflussen. Dieses Buch liest sich wie ein spannender Roman, aber es ist mehr: Eine solide Untersuchung hinsichtlich neuer Methoden zum Erreichen einer optimalen Audiowiedergabe.

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SPD3000X Series Linear Programmable DC Power Supply has a 4.3 inches TFT LCD display, Supports Programmability and Real Time Wave Display, bringing a new experience to users. It has three isolated outputs: two adjustable channels and one selectable channel from 2.5V, 3.3V, and 5V. It also has output short and overload protect function, and can be used in production and development. Features 3 independent controlled and isolated output, 32V/3.2A×2, 2.5V/3.3V/5V/3.2A×1, total 220W. 5 digits Voltage, 4 digits Current Display, Minimum Resolution: 1mV/1mA. Supports panel timing output functions. 4.3 inch true color TFT LCD 480x272 pixel display. 3 kinds of output modes: independent, series, parallel. 100V/120V/220V/230V compatible design to meet the needs of different power grids. Intelligent temperature-controlled fan, effectively reducing noise. Clear graphical interface, with the waveform display function Internal 5 groups of system parameter save/recall, supports data storage space expansion. Provides PC software: Easypower, supports SCPI, LabVIEW driver. High-resolution and high-precision output The highest resolution of 1mV/1mA, provides excellent setting and read back accuracy. This ensures accurate output even with very with small changes in voltage or current. This is impossible for a low resolution power supply. Series/parallel/independent mode function Series and parallel function allows two channels combined into one output with more power output capability, extending the application range. Each of 3 channels power can be turned on or off independently and also can be turned all on or all off. Panel displays the timing output Through the panel operation, 5 groups of timing settings and output control can be displayed, which provides users a simple power programming function. Also a connection can be made with Siglent’s EasyPower PC software providing a full range of communication and control requirements. Save/Recall setting parameters SPD3000X series programmable power supply can save or recall 5 groups of setting parameter in internal storage, also supports external storage expansion. You can easily obtain the settings you needed.

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Quite unintentionally a one-page story on an old Heathkit tube tester in the December 2004 edition of Elektor magazine spawned dozens of ‘Retronics’ tales appearing with a monthly cadence, and attracting a steady flow of reader feedback and contributions to the series. Since launching his Retronics columns, Elektor Editor Jan Buiting has never been short of copy to print, or vintage equipment to marvel at. This book is a compilation of about 80 Retronics installments published between 2004 and 2012. The stories cover vintage test equipment, prehistoric computers, long forgotten components, and Elektor blockbuster projects, all aiming to make engineers smile, sit up, object, drool, or experience a whiff of nostalgia. To reflect that our memories are constantly playing tricks on us, and honoring that “one man’s rubbish is another man’s gem”, the tales in the book purposely have no chronological order, and no bias in favor of transistor or tube, microprocessor or discrete part, audio or RF, DIY or professional, dry or narrative style. Although vastly diff erent in subject matter, all tales in the book are told with personal gusto because Retronics is about sentiment in electronics engineering, construction and repair, be it to reminisce about a 1960s Tektronix scope with a cleaning lady as a feature, or a 1928 PanSanitor box for dubious medical use. Owners of this book are advised to not exceed one Retronics tale per working day, preferably consumed in the evening hours under lamp light, in a comfortable chair, with a piece of vintage electronic equipment close and powered up.

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RFID (DE) | E-book

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Elektronik-Praxis für Einsteiger (E-book)

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NI myDAQ in der Praxis (E-book)

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Elektor Juillet/Août 2020 (PDF)

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Low-Noise Lab Power Supply (1)A Quiet Source for Sensitive Circuits STM32 Edge AI Contest 2025: The Winners Batteries TodayTechnology and Differences in Lithium Batteries Adjustable Electronic LoadStatic + Dynamic DC Load Step-Down Converter from 48 V to 5 VThe Story of Circuit Development Autonomous Sensor Node v2.0Part 2: Hardware Validation and Power Optimizations VaristorsPeculiar Parts, the Series Graphical Grid Frequency MeterMonitor Grid Quality Starting Out in Electronics……Brings Its Own End Peak Current Load SMD FerritesMore Resilient Against Current Peaks Elektor Live! Expert Day 2025 Energy Harvesting Set to Accelerate IoT and IIoT Use CasesHow Energy Harvesting Frees IoT from the Grid Fnirsi DPS-150Compact and Portable Power Supply and Converter Adjustable USB-C Power SourceTurn Your USB-C Charger Into an Adjustable Power Supply Simple Charger and Capacity TesterWith Two Cheap “Off-the-Shelf” Modules Smart Color Detector with AI Voice and Playback PbMonitor v2.0Introduction to the Updated Battery Monitoring System A Fan for the Mini Reflow PlateSmart Modifications That Improve Results From Life’s ExperienceThe Tsunami of Indulgence Err-lectronicsCorrections, Updates, and Readers’ Letters 2026: An AI OdysseyWhen Models Start Dictating the Hardware Precision Picoammeter (2)Assembling, Calibration, and Test Wireless Device Poweringwith Inductive Technology AI-Based Autonomous DrivingThe RDW’s Self Driving Challenge 2024 Sound Card as Signal GeneratorPC as DCF77 Test Transmitter

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Elektor Mai/Juin 2021 PDF (FR)

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Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. Pour les yeux et les oreilles sortie vidéo sur les microcontrôleurs (1)vidéo composite electronica 2022nouvelles du plus grand salon mondial de l?électronique caméra ESP32si simple qu?on n?a même pas besoin du wifi alimentation ATX pour Raspberry Pi amplificateur pour casque 32 ?une solution simple mais de qualité à trois CI horloges radiocommandées SDRcinq signaux horaires, six affichages démarrer en électroniquediodes spéciales sur le viferrances qualitatives rétro-ingénierie d?un badge LED Bluetooth Low Energycomment commander un appareil BLE avec un script Python kit de développement MakePython ESP32tout dans une boîte mesure du THD avec un oscilloscope et une FFTcalculer facilement le facteur de distorsion machines à vision totalela technologie derrière les systèmes de vision industrielle d?aujourd?hui Infographies l?évolution de la commande vocale et audio des appareils électroniques bilan du WEEF 2022 bilan du salon electronica 2022les innovateurs n?ont pas manqué d?impressionner The Tubeun surprenant amplificateur à tubes à quand des biomatériaux pour l?électronique?? commutateur d?antenne Opera Cake pour HackRF Oneconnectez jusqu'à huit antennes à votre SDR concevoir avec Arduino et plusentretien avec l?auteur Ashwin Pajankar jauge de longueur à lidarmesure jusqu?à 12 m les signaux audios et l?ESP32l?environnement ESP-ADF en pratique Kit amplificateur de puissance Fortissimo-100 d?Elektor utiliser la lumière pour les effets sonoresfiltre synthétiseur à base de LDR, contrôlé en tension, 24 dB/oct amplificateur Hi-Fi d?Elektorle plus bruyant de tous?! visite à domicileafficheur volumétrique made in Canada projet 2.0corrections, mises à jour et courriers des lecteurs Hexadoku

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Develop your own custom home automation devices Espressif's ESP8266 and ESP32 microcontrollers have brought DIY home automation to the masses. However, not everyone is fluent in programming these microcontrollers with Espressif's C/C++ SDK, the Arduino core, or MicroPython. This is where ESPHome comes into its own: with this project, you don’t program your microcontroller but configure it. This book demonstrates how to create your own home automation devices with ESPHome on an ESP32 microcontroller board. You’ll learn how to combine all kinds of electronic components and automate complex behaviours. Your devices can work completely autonomously, and connect over Wi-Fi to your home automation gateways such as Home Assistant or MQTT broker. By the end of this book, you will be able to create your own custom home automation devices the way you want. Thanks to ESPHome and the ESP32, this is within everyone’s grasp. Set up an ESPHome development environment and create maintainable configurations Use buttons and LEDs Sound a buzzer and play melodies Read measurements from various types of sensors Communicate over a short distance with NFC, infrared light, and Bluetooth Low Energy Show information on various types of displays Downloads Software

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Inhalt 30 Watt Röhrenverstärker mit variablem Dämpfungsfaktor 50 Watt Super Trioden Verstärker 300 Watt Röhrenendstufe Digibias: Digitale Ruhestrom-Einstellung und -Überwachung Paper Hatt: Klein, aber fein Origami M und C: Ein Subwoofer-Entwurf für zwei Anwendungsbereiche ScanSpeak Vertigo: Kompaktes Dreiwegesystem Intertrechnik Elip1: Elegante 2-Wege-Kombi zum kleinen Preis Visoton Clou: Prinzip Acoustical Tripath Pro HiFi Fréjus: Für Freunde der gehobenen Lautstärke ASE Someo: Kompakte Koaxial-Kombination ASE Someo-Sub: Aktiver Dipol-Woofer mit Linear Array Transducer MinimA: Ein minimalistischer 120 W Klasse-B-Verstärker Symmetrischer Vorverstärker/Aktives Filter: Ein Standardrezept für verschiedene Anwendungen RelaiXed: Symmetrischer Vorverstärker mit Relais

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