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เนื้อหาย่อ : This book presents a comprehensive course in black-and-white and color television for technicians and servicemen. The practical explanations of television principles and receiver circuits are planned for the beginning student in television. In addition to the troubleshooting principles helpful in repairing receivers, each circuit section is analyzed as an application of basic electronic principles that apply to all types of electronic equipment. This method of presentation, based on experience in teaching television and electronics for many years, has proved very successful in helping students. The book is designed as a text for television courses that follow a course in radio or electronics fundamentals. Similarly, Chapters 24 and 25 on color television can be used for a short course in color television receivers after the students have learned the essentials of black-and-white television. The explanations are essentially nonmathematical, but quantitative work with some simple algebra is included where it helps to illustrate specific examples for applications of important fundamentals. Topics analyzed quantitively are wide-band amplifers applied to practical design of video amplifier., self-induced voltage applied to horizontal deflection circuits, resonance applied to i-f amplifers and RC time constant applied to deflec- tion oscillators. On the practical side, all examples are from typical receivers: many photos are used to show actual components, including printed-wiring boards; oscilloscope photos illustrate typical waveshapes; and common troubles are shown by photos of the kinescope screen. Each chapter on receiver circuits concludes with essential troubleshooting principles useful for localizing troubles. More details with techniques in use of the oscilloscope, meters, and signal generators are given in Chapter 23 on Receiver Servicing. Tables 23 ㆍ 2 to 23ㆍ 5 summarize nearly all the common troubles in television receivers.