Amateur radio designer: V. Frolov. Hypersensitivity superheterodyne. I. Gluzman. Disc switch. Fans of television: V. Kanunnikov, K. Samoilikov. Small-sized TV "Integral." Measuring equipment: A. Kuznetsov. Small-sized oscilloscope. Primary organizations of DOSAAF: A. Yerkin. Ionic layout for installation training. A. Kuzminsky, V. Lomanovich. Thyristor ignition systems for automotive engine. A. Blagoveshchensky. Electronic ignition unit on thyristor for automobile. Reference department: In Ivanov. K237 Series Hybrid Integrated Circuits.