Audio Amateur 1/1970 PDF

Audio Amateur 1/1970 PDF - Issue is in black & white Scan of printed copy, PDF download immediately upon purchase Winter 1970 (Volume 1, Number 1) The debut issue of The Audio Amateur marks the beginning of a new era for DIY enthusiasts, focusing on precision solid-state design and the restoration of classic gear. Here are the highlights to entice your inner audio craftsman: The Twin-twenty, Mark II: Build a sophisticated 20-watt power amplifier utilizing an all-silicon, fully complementary output stage. This design doesn't just deliver high-fidelity sound; it includes a sophisticated electronic overload protection circuit to save your speakers and transistors from accidental damage. Disc Pollution: How to Fight It: Stop letting "pops and crackles" ruin your listening experience. Audio legend Percy Wilson shares a "systematic approach" to deep-cleaning factory-sealed records and provides plans for a DIY washing machine that pulls grit out of the grooves. Improve your Dyna PAT-4: Transform the best-selling Dynaco preamplifier into a state-of-the-art performer. This definitive guide details how to replace noisy tone controls with precision switched resistors, optimize phono equalization, and add critical shielding to silence hum. Record Your Own Bomb Scare: Experience the thrill of location recording in the first of a new series. Learn how one amateur captured a historic mass in Assisi, Italy, navigating technical limitations and an actual bomb threat to preserve a priceless moment. Just Looking, Thanks...: Stop the endless search for specialized components. This curated guide connects you with expert merchants who offer everything from etched circuit boards for TAA projects to matched pairs of high-performance transistors. Table of Contents The Twin-twenty, Mark II: by Reginald Williamson ................................................................ 2 Disc Pollution: How to fight it: by Percy Wilson ................................................................ 12 Improve your Dyna PAT-4: by the Editor ................................................................................ 14 Record your own bomb scare: by T. C. Whitehouse ........................................................... 21 Just looking, thanks...: by Amateur .......................................................................................... 23 Letters ............................................................................................................................................. 21 Coming Attractions ................................................................................................................... 22