Designing High-Fidelity Valve PreampsDesigning High-Fidelity Tube Preamps is a comprehensive guide to the design of small-signal, tube-based amplifiers. This book examines in unprecidented detail the inner workings and practical design of small signal stages, volume and tone controls, RIAA equalisation, power supplies and more. Aimed at intermediate to advanced-level hobbyists and professionals it teaches the principles of low-noise, low-distortion tube design, through easy-to-read explanations and minimal math. With over 400 diagrams and figures, and hundreds of real measurements of real circuits, it asserts itself as an essential handbook for any tube amp enthusiast. |
Contents
Practical Components | 64 |
Fundamentals of Amplification | 113 |
The SmallSignal Pentode | 166 |
Noise Hum and Microphony | 188 |
Advancements in Amplification | 221 |
The Cathode Follower | 247 |
Compound Amplifiers | 288 |
Controls | 315 |
The Phono Stage | 335 |
Power Supplies | 364 |
Common terms and phrases
1kHz amplifier amps anode characteristics anode current anode voltage attenuation audio bandwidth bias point bias voltage blocking distortion bypass capacitor capacitance cascode cathode follower circuit in fig components constant coupling capacitor current source datasheet degenerated device diode dissipation Distortion versus effect electrolytic electrons equal equalisation equation equivalent input noise example feedback filter flicker noise flow frequency response gain stage grid current grid curves grid voltage harmonic heater supply heatsink increases inductance inductor linear load current load line maximum measured Miller capacitance MOSFET negative output impedance output resistance output voltage parallel pentode phono potential divider power supply preamp PSRR reactance rectifier reduced regulator resistor RIAA ripple current screen voltage shot noise shown in fig shows signal simple sine wave source impedance source resistance SRPP switch Thévenin equivalent transformer transistor triode usually valve voltage ratings waveform wire Zener Zener diodes zero