About the book: 2015 / Practical examples tell how to design, debug and manufacture electronic devices at home. From the physical fundamentals of electronics, descriptions of the design and operating principles of various radio-electronic components, tips on equipping a home laboratory, the author moves on to specific analog and digital circuits, including microcontroller-based devices. Basic information on metrology and theoretical foundations of electronics is provided. Many practical recommendations are given: from the principles of proper organization of power supply to obtaining information about devices and purchasing components in relation to Russian conditions. The third edition is supplemented with information about the popular Arduino platform, with which the most modern radio electronics become available to any radio amateur. For a wide range of radio amateurs