This textbook is actually a continuation of the book published in 2008 by Frisk V.V., Logvinov V.V. "Fundamentals of circuit theory, fundamentals of circuitry, radio receivers. Laboratory workshop on a personal computer." The manual consists of two parts. The first part presents laboratory work in the discipline "Theories of electrical circuits." The second part contains laboratory work for students studying the disciplines "Circuitry of telecommunication devices," "Radio receivers of mobile communication systems" and "Radio receivers of radio communication and radio access systems."