For the experienced builder, this book cuts through the noise. Forget lengthy explanations and dive directly into the essential procedures and formulas needed for guitar amplifier circuit design.
Inside, you'll find step-by-step procedures for designing
- triode and pentode voltage amplifiers,
- voltage amplifiers with parallel triodes,
- tone stacks tailored to your circuit's requirements, including insertion loss, knob count, and the required driving circuit,
- split-load and long-tailed-pair phase inverters,
- single-ended and push-pull power amplifiers, including negative feedback implementations, and
- vacuum-tube and solid-state DC power supplies.
Get ready to streamline your process and produce extraordinary results!
Richard Kuehnel
is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.
Introduction
Warning: High Voltage!...1
Why the Prerequisites?...2
Voicing...3
Acknowledgements...3
Design a Fixed-Bias Triode Voltage Amplifier
Prerequisites...4
Procedure...4
Example...7
Design a Cathode-Bias Triode Voltage Amplifier
Prerequisites...15
Procedure...15
Example (12AX7)...18
Example (12AY7)...24
Example (6SL7/12SL7)...30
Design a Cathode-Bias Pentode Voltage Amplifier
Prerequisites...37
Procedure...38
Example (EF86)...40
Example (6SJ7/12SJ7)...51
Example (5879)...61
Design a Voltage Amplifier with Parallel Triodes
Prerequisites...71
Procedure...71
Example...74
Select a Tone Stack
Prerequisites...82
Procedure...82
Examples...82
Schematics and Performance Details...83
Fender Princeton 6G2...83
Supro Thunderbolt S6420...84
Orange OR120 (Graphic Mk II)...85
A Fender Twin Reverb Inspiration...86
Marshall Model 1987 "Plexi"...87
Fender Bassman 5F6-A...88
Vox AC30 Silver Jubilee...89
Fender Twin 5D8...90
Design a Split-Load Phase Inverter
Prerequisites...92
Procedure...92
Example...93
Design a Long-Tailed-Pair Phase Inverter
Prerequisites...100
Procedure...100
Example (12AX7)...102
Example (12AT7)...109
Design a Single-Ended Power Amp
Prerequisites...117
Procedure...117
Example (6V6)...119
Example (EL84)...129
Design a Push-Pull Power Amp
Prerequisites...151
Procedure...151
Example (6V6)...154
Example (EL84/6BQ5)...162
Design Feedback for a Single-Ended Power Amp
Prerequisites...171
Procedure...172
Example...173
Design Feedback for a Push-Pull Power Amp
Prerequisites...177
Procedure...178
Example...179
Design a Power Supply with a Vacuum Tube Rectifier
Prerequisites...181
Procedure...181
Example...182
Design a Power Supply with a 1N4007 Rectifier
Prerequisites...186
Procedure...186
Example...187
Some Final Words...194
