Hi-Fi Audio, 2005 Supplement

Author: Wang Weimin
Publisher: China Communications Press
Publication Date: 2005-07-01
Features: Eighty classic circuits of vacuum tube amplifiers, rich and practical vacuum tube resources, a treasure trove for the design and construction of vacuum tube machines. In recent years, with the rapid development of audio technology both domestically and internationally, vacuum tube audio amplifiers have made a comeback with their unique charm, with countless new and innovative vacuum tube machines emerging, becoming a hot pursuit for audio enthusiasts. This special issue primarily introduces the finest vacuum tube preamplifiers and power amplifiers from renowned domestic and international brands, featuring over a hundred models, including many classic circuits. Some vacuum tube machines hold historical significance as milestones, allowing to gain a deeper understanding of the of various famous machine circuits. The appreciation of famous machine circuits integrates both reference and aesthetic value, with its main content including: physical appearance diagrams, circuit diagrams, and various electrical performance charts of different famous machines. In the circuit diagrams of famous machines, the circuit structure is analyzed in detail with appropriate verification. In terms of electrical performance, it mainly covers: input and output characteristics, distortion rate characteristics, frequency response characteristics, damping characteristics, etc., with brief analyses presented in the form of charts or data. The content of the special issue includes: basic knowledge of vacuum tube preamplifiers, classic and modern popular circuit designs of various preamplifiers both domestically and internationally; basic knowledge of vacuum tube power amplifiers, classic and modern popular circuit designs of various power amplifiers both domestically and internationally. The appendix provides a table of commonly used vacuum tube characteristic parameters, collecting data on hundreds of commonly used vacuum tubes from both domestic and international sources. This special issue compiles a wide range of materials with strong reference and practical value, suitable for audio designers and enthusiasts to appreciate and draw inspiration from. In today's pursuit of high-fidelity (Hi-Fi) audio, it can further enhance your appreciation level for vacuum tube machines.