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Basic Audio by Norman H. Crowhurst - Volumes 1-3 (1959)

“BASIC AUDIO – Volumes 1, 2, & 3” by Norman Crowhurst (1959). This is a 3-volume set on, as the title implies, basic audio. The best introduction to tube hi-fi Ive seen, Volume 1 (114 pages) starts with the nature of sound, and covers the basics of speakers and microphones. Volume 2 (122 pages) continues with amplification, covering the basics of amplifier design. Volume 3 (113 pages) covers a little more advanced topics like feedback, power supplies, and recording. If youre a beginner, READ THESE BOOKS!


Volume 1
· Introduction
· The Nature of Sound
o Questions and Problems
· Acoustics
o Questions and Problems
· Microphones
o Questions and Problems
· Loudspeakers
· Baffles
· Horns
· Other Types of Speakers
o Questions and Problems
· Impedance Matching
· Dividing Networks and Crossovers
· Resce
· Audio Response Curves
o Questions and Problems

Volume 2
· Electronic Amplification
· A-C Measurements
· Circuit Values
o Questions and Problems
· Amplifier Arrangements
· Transistors
· Interstage Coupling
o Questions and Problems
· Noise
· Distortion Effects
· Use of the Oscilloscope
· Frequency Response
· Power Amplification
o Questions and Problems
· Phase-Splitting Circuits
o Questions and Problems
· Audio Transformers
· Distortion
o Questions and Problems

Volume 3
· Feedback Fundamentals
o Questions and Problems
· Feedback
· Feedback Applications
· Controls
o Questions and Problems
· Plate
· Voltage Supply
· Grid Bias Supply
· Screen Bias Supply
· Filament or Heater Supply
· Transformerless Power Supply
o Questions and Problems
· Shielding
· Audio Transmission Lines
· Transient Effects
· The Audio Amplifier
· Audio Oscillators
o Questions and Problems
· Recording
· Electro-Acoustics
· Audio and Hearing
o Questions and Problems

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