Audio Amateur 3/1977 PDF
Audio Amateur 3/1977 PDF - Issue is in black & white
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The 1977 issue 3 of The Audio Amateur offers a deep dive into advanced amplification, antenna design, and the latest technical research from the professional audio world. Here are the highlights to entice your inner audio enthusiast:
- The Speaker Saver: Say goodbye to the annoying "thump" of solid-state systems. Walt Jung presents a thumpless solid-state circuit that provides total transient protection for your output devices, speakers, and ears.
- A High Efficiency Electrostatic Loudspeaker System: Part II: Continue your journey into high-end transparency. David Hermeyer unveils a new, smaller, and more efficient direct-drive IC/tube amplifier specifically designed to power electrostatic speakers.
- A $10 Three-Element Yagi Antenna for FM: Stop struggling with poor signal reception. Learn how to build a high-performance directional FM antenna for under $10 that provides a "better answer" for clean, quiet classical music reception.
- An Amateur at an AES Convention: Get an insider’s tour of the 55th Audio Engineering Society convention. Explore the latest prototypes in tape deck technology and sit in on technical sessions covering everything from psychoacoustics to microprocessor-controlled audio gear.
- Slewing Induced Distortion: Part 3: Dive into the cutting edge of distortion research. This installment focuses on Phase III testing—Transient Intermodulation (TIM) tests—using sine-square waves to characterize the performance of modern IC op amps.
- The Gately Micromixer: Part I: Begin construction on a professional-grade, modular 16-in, 2-out mixing console. This part provides full-size guides and schematics for building the input module, complete with EQ and echo controls.
- Audio Aids: Discover ingenious reader-submitted hacks, including a simple metering circuit for the Dyna Mark III, a study on power supply filtering, and a comprehensive guide to calculating stylus overhang.
- Book Talk: Expand your technical library with expert reviews of Lou Burroughs' Microphones: Design and Application and Arthur Benade's Fundamentals of Musical Acoustics.
- Classic Circuitry: Reference the engineering of a legend. This issue features the basic schematics for John Curl's JC-2 preamplifier, including the phono amp and output amplifier modules.
Table of Contents
- The Speaker Saver: thumpless solid state audio: by Walt Jung .................................... 4
- A High efficiency electrostatic loudspeaker system: Part II: by David P. Hermeyer ..................................................................................................................... 8
- A $10 Three-Element Yagi Antenna for FM: by John A. Stein ..................................... 15
- An Amateur at an AES Convention: by James O. Thoroman .......................................... 18
- Slewing Induced Distortion: Part 3: by Walt Jung, Mark L. Stephens and Craig Todd ........................................................................................................................................... 21
- The Gately Micromixer: Part I: by Ed Gately ...................................................................... 30
- Audio Aids: by readers Boylan, Klett and Hosain ............................................................ 40
- Book Talk: by Richard Honeycutt and Thomas W. Parsons ............................................. 44
- Classic Circuitry: John Curl's JC-2 1973-1976 ................................................................. 48
- CORRECTIONS ........................................................................................................................... 49
- LETTERS ..................................................................................................................................... 49
- CLASSIFIED ................................................................................................................................ 59
- AD INDEX ................................................................................................................................... 62