About the book: 2007 / The book is a practical introduction to the study of the beginnings of radio electronics using a computer and independent technical creativity. In a popular form, it talks about radio electronics, explains the meaning of the concepts and phenomena used, and provides entertaining episodes from the history of inventions and discoveries. The basis of the practical part is descriptions of the simplest and at the same time interesting and useful homemade products from Master KIT electronic kits. Detailed advice is given on their assembly, adjustment and use in everyday life. In parallel, the principles of operation of the devices in question are revealed by simulating their circuits on a computer in a simple game-type program - Electronics Workbench. For a wide range of readers who would like to make friends with radio electronics by sitting down at a computer and picking up a soldering iron.