Technical Audio and Reference Information
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Here is a small collection of technical papers, reference information and online calculators related to Do-It-Yourself (DIY) Hi-Fi Audio and Electronics. If you have any information that you think may be of value to fellow DIY Audio and Electronic hobbyists, please contact us. For those of you that are new to diy audio and electronics, you may be interested in our DIY Audio Books and Manual suggestions.
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Follow DIY Audio Projects
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DIY Speakers
- Baffle Step Correction Circuit / Compensation Calculator
- Zobel / Impedance Equalization Circuit Calculator
- Thiele / Small (T/S) Speaker Parameter Definitions
Aperiodic Loudspeakers
Amplifiers
Vacuum Tube Audio
Electronics
- Basic Electronics (Resistors, Capacitors and Inductors in Series and Parallel)
- Resistor Color Codes Guide
- Common Transistor Cases
- Voltage and Current Regulator Calculators (LM317, LM338, LM350)
- Ohm's Law and Ohms Law Calculator
- American Wire Gauge (AWG) Table
Technical Audio Publications
Loudspeakers
- A Model of Open-Baffle Loudspeakers - Juha-Backman (1999) - (PDF 1.1MB) NEW!
- Alpha Transmission Lines - Rick Schultz - (PDF 951kB)
- Closed Box Loudspeaker Systems Part I - Analysis - Richard H. Small - (PDF 804kB)
- Closed Box Loudspeaker Systems Part II - Synthesis - Richard H. Small - (PDF 601kB)
- Direct Radiator Loudspeaker System Analysis - Richard H. Small - (PDF 985kB)
- Factors in the Design of Loudspeaker Cabinets - H.D. Harwood - (PDF 1.9MB)
- Horn Loudspeaker Design Part 1 - J. Dinsdale - (PDF 832kB)
- Horn Loudspeaker Design Part 2 - J. Dinsdale - (PDF 1.4MB)
- Horn Loudspeaker Design Part 3 - J. Dinsdale - (PDF 953kB)
- Line Source Loudspeaker - Paul H. Taylor - (PDF 888kB)
- Loudspeakers in Vented Boxes - Part I - A. N. Thiele - (PDF 854kB)
- Loudspeakers in Vented Boxes - Part II - A. N. Thiele - (PDF 1.1MB)
- Loudspeakers on Damped Pipes - G. L. Augspurger - (PDF 3.9MB)
- Non-resonant Loudspeaker Enclosure Design - A. R. Bailey - (PDF 549kB)
- Non-resonant Loudspeaker Enclosure Design - Letters to the Editor - (PDF 201kB)
- Transmission Line Loudspeaker Enclosure - A. R. Bailey - (PDF 499kB)
- Vented Box Loudspeaker Systems - Part I - Richard H. Small - (PDF 746kB)
- Vented Box Loudspeaker Systems - Part II - Richard H. Small - (PDF 621kB)
- Vented Box Loudspeaker Systems - Part III - Richard H. Small - (PDF 451kB)
- Vented Box Loudspeaker Systems - Part IV - Richard H. Small - (PDF 340kB)
Vacuum Tubes (valves)
- A Direct-Coupled Amplifier with Cathode Follower - Raymond H. Bates - Radio & Television News - November 1949 NEW!
- The Cathode Follower - A.P. Blackburn - The Radio Constructor - November 1955 - (low resolution scan)
- The Single 300B Amplifier: A Model 91 for 1992 - Joe Roberts - (PDF 759kB)
- 12AX7 / 6V6 Single-Ended Class-A Tube Amp Design and Construction - Student Project - (PDF 1.4MB)
- Design of an Audio Frequency Vacuum Tube Amplifier - Brad Bryant (M.Sc. thesis) - (PDF 569kB)
- 10W 6V6 Push-Pull Vacuum Tube Amplifier (Class-AB) - Michael S. Holden - (PDF 3.4MB)
- Feedback Amplifiers - H.S. Black - Bell Laboratories Record - (PDF 1.6MB)
- Compact Hi-Fi Power Amplifier - Melvin Leibowitz - Electronics World - June 1961
Audio Cables
- The Damping Factor Debate - George L. Augspurger - (PDF 694kB)
- Damping, Damping Factor, and Damn Nonsense - Floyd E. Toole - (PDF 1.33MB)
- Speaker Cables: Science or Snake Oil - Nelson Pass - (PDF 347kB)
Miscellaneous Audio Papers
- Loudness and Pitch - Harvey Fletcher - - Bell Laboratories Record (PDF 1.4MB)