Glass Audio 1989 Issue 1 (of 2)
1989 Issue 1 (of 2) of Glass Audio - in PDF format
Link emailed immediately upon purchase
Welcome to the inaugural issue of Volume 1, Number 1 of Glass Audio (1989). This collector's item marks the beginning of a new place for vacuum tube enthusiasts to swap designs, experiences, and discoveries.
- ST-70 With Solid-State Regulation – Joe Curcio delivers a "no compromise" update to the classic Dynaco Stereo 70. By replacing the original driver stage with an all-triode design and introducing sophisticated servo-controlled solid-state regulation, this modification is engineered to excel in definition, dynamics, and imaging.
- UK ROUND-UP – Join Ken Kessler as he reports on the "rising tide of hollow-state hardware" in the United Kingdom. Discover iconoclastic models like the Audion Silver Night and Valfet power amplifiers that are leading the British resurgence in tube technology.
- A Vacuum Tube Denon CD – Richard Painter tackles the "dry, granular character" of early digital audio by replacing the stock solid-state output stage of a Denon DCD 1500 with a vacuum tube line stage. Learn how this DIY project brings "warmth, richness and apparent dynamics" to your CD collection.
- Restore Your Scott Tuner – Victor Staggs shares essential restorative techniques after rescuing a vintage H. H. Scott LT-110 FM tuner for just $1. This article provides a roadmap for troubleshooting, chassis cleaning, and multiplex alignment to bring classic stereo performance back to life.
- ASK GA: Feedback and Load Lines – Technical legend Norman Crowhurst demystifies the complexities of loop feedback and AC load lines. Using detailed equivalent circuits, he explains how output loads affect loop gain and transient response in high-level stages.
- World Directory of Tube Electronics Manufacturers – Access a comprehensive, country-by-country guide to global manufacturers of tube amplifiers, preamplifiers, and specialized tube CD players—an essential resource for any serious "hollow-state" enthusiast.
CONTENTS
Volume 1, Number 1 (1989)
| Article | Author(s) | Page |
|---|---|---|
| ST-70 With Solid-State Regulation | Joe Curcio | 1 |
| UK ROUND-UP | Ken Kessler | 3 |
| A Vacuum Tube Denon CD | Richard Painter | 15 |
| Restore Your Scott Tuner | Victor Staggs | 20 |
| ASK GA | Norman Crowhurst | 24 |
| TUBE DIRECTORY | — | 27 |
| LETTERS | — | 29 |
| CLASSIFIED | — | 31 |
Note: Page numbers are based on the table of contents provided in the source.