Audio Amateur 3/1970 PDF
Audio Amateur 3/1970 PDF - Issue is in black & white
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The Summer 1970 issue (Volume 1, Number 3) of The Audio Amateur is a technical tour de force, offering advanced circuit designs and deep dives into the physics of high-fidelity sound. Here are the highlights to entice your inner audio engineer:
- Numbers Game: Cut through the "wild power claims" of commercial manufacturers. This investigative piece explores the reality of power ratings, debunking Madison Avenue myths and explaining how to achieve honest, low-distortion watts for real-world listening .
- A Low Noise Tape Playback Amplifier: Build a professional-grade playback stage for your recording system. This versatile circuit, featured on a compact two-inch plug-in board, is the perfect foundation for building a high-quality tape copier or a four-channel playback deck.
- Patch Plug Pleasure: End the "rat’s nest" of cables behind your equipment once and for all. Learn how to build a flexible, professional-style patch panel that acts as the central nerve center for your entire installation, allowing instant interconnections with zero frustration.
- Protecting Output Transistors: Save your expensive solid-state power devices from their own "self-destruct tendencies." Dr. Arthur Bailey surveys the most effective methods for protecting transistors from overloads and short circuits, ensuring your high-power designs stay safe and reliable.
- Tapeniques: Master the art of the microphone. The premiere of this series provides expert techniques for capturing the complex sounds of grand pianos, pipe organs, and choral groups, helping you achieve a truly "live" recording with stunning clarity.
- L-C/H-Q, Mark I: Go inside the lab with legendary designer Peter Baxandall. In this technical installment, follow the precise design and measurement process for a center-channel woofer to complete a high-performance, low-cost loudspeaker system.
- Learning to Use Transistors: Master the atomic foundations of modern audio. This deep dive into electron energy bands and semiconductor physics provides the essential engineering knowledge required to truly understand how transistors work.
- Benchmarks: Transform your workshop into a precision engineering lab. Get expert advice on selecting the right tools, mastering metalwork, and utilizing the best construction techniques to make your DIY projects look and perform like professional gear .
Table of Contents
- Numbers Game: by The Editor and Reginald Williamson ......................................... 3
- Letters ................................................................................................................................... 4
- A Low Noise Tape Playback Amplifier: by Reginald Williamson ............................ 5
- Patch Plug Pleasure: by Alan S. Douglas ....................................................................... 8
- Methods of Protecting Output Transistors: by Arthur R. Bailey ............................ 11
- Tapeniques: by James K. Jobson ...................................................................................... 13
- L-C/H-Q, Mark I: by Peter J. Baxandall .......................................................................... 14
- Learning to Use Transistors: by C. N. G. Matthews ................................................. 17
- Benchmarks: by Amateur ................................................................................................ 19
- More Letters ..................................................................................................................... 20
- Classified Ads ................................................................................................................... 22
- Just looking, thanks ........................................................................................................ 23