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

BASIC AUDIO Volumes 1, 2, & 3 by Norman Crowhurst (1959) is a comprehensive 3-volume set that serves as an excellent introduction to basic audio concepts. These manuals are invaluable resources for individuals interested in tube hi-fi, whether they are professional mechanics or DIY enthusiasts.

• Volume 1 (114 pages) delves into the nature of sound, covering fundamental aspects of speakers and microphones.
• Volume 2 (122 pages) continues the exploration with a focus on amplification and amplifier design basics.
• Volume 3 (113 pages) delves into more advanced topics such as feedback, power supplies, and recording.

The manuals are scanned and converted into Adobe Acrobat format, making them accessible to anyone with Adobe Acrobat Reader installed on their computer.

TABLE OF CONTENTS

Volume 1

• Introduction
• The Nature of Sound
• Acoustics
• Microphones
• Loudspeakers
• Baffles
• Horns
• Other Types of Speakers
• Impedance Matching
• Dividing Networks and Crossovers
• Resonance
• Audio Response Curves

Volume 2

• Electronic Amplification
• A-C Measurements
• Circuit Values
• Amplifier Arrangements
• Transistors
• Interstage Coupling
• Noise
• Distortion Effects
• Use of the Oscilloscope
• Frequency Response
• Power Amplification
• Phase-Splitting Circuits
• Audio Transformers
• Distortion

Volume 3

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