Valve Amplifiers

Most books on valves have three things in common: they are over 25 years old, they are very out of date, and they have been out of print for many years. This is a completely new and practical guide for people working with valves. Morgan Jones takes the reader through each step in the process of design, starting with a brief review of electronic fundamentals relevant to valve amplifiers, simple stages, compound stages, linking stages together, and finally, complete designs. The Mullard 5-20, Quad II, and Williamson power amplifiers are analysed as examples of complete systems, before showing a worked example of a simple but elegant 10W design. Pre-amplifier design is then investigated, particularly the problems of designing a successful RIAA disc stage. This then culminates in a design for a high-quality pre-amplifier, particularly suitable for use with either the 10W amplifier or Quad IIs. Safety and practical aspects are investigated. Layout, component choice and construction techniques are also covered. Morgan Jones offers numerous practical hints and tips based on his experience with real designs, thus providing readers with the knowledge required to build new projects that actually work.