In this issue

8 The Original Western Electric 300B Vacuum Tube - Now Shipping Worldwide
audioXpress provides an inside look at Western Electric, which has reestablished operations due to the resolve of entrepreneur Charles Whitener. The company now based in Rossville, GA, recently created a new and re-imagined electron tube works facility with the goal to resume manufacturing the 300B single-ended triode tubes, and reintroduce its flagship product to market.

14 Using Chaffee’s Method of Load Lines
In this article, Scott Dorsey recalls a rapid and ingenious way to use load lines to easily predict tube circuit operations.

20 Experimenting with Tube Sound
Learn how automatic gain control applied to solid-state and vacuum tube audio paths enable interesting design, construction, and listening experiences in this easy-to-build stereo preamp.

26 The Cranberry - A Versatile Stereo Vacuum Tube Amplifier
In an effort to expand his DIY amplifier collection, Bruce Heran designed this stereo vacuum tube amplifier using a concept that originated in the 1940s and was initially intended for a budget amplifier.

36 Determining the Real Output Current for Op-Amps and Fully Differential Amplifiers

40 Measuring Vibration with Piezoelectric Sensors (Part 2) - Design and Construction

48 Noise Is Everywhere—Even in MC Input Transformers (Part 1) - A Special Survey for the Skeptics

54 The Science and Physics of High-End Mic-Preamp Design (Part 4) - Different Approaches
60 Vibrato and Tremolo

audioXpress Magazine Description:

Step into the realm of audio, sound technology, and the latest developments in the field with audioXpress Magazine. We're delighted to introduce you to this publication, your ultimate source for all things related to audio, audio equipment, and the art of sound reproduction.

audioXpress Magazine, published by KCK Media Corp., is not just a magazine; it's your portal to the world of audio and sound technology.

As you explore the pages of audioXpress Magazine, you'll find a world of content that celebrates the magic of sound and audio technology:

* Audio Equipment: Dive into the world of audio gear, equipment reviews, and the latest advancements in the industry.
* Sound Technology: Explore the science of sound, audio engineering techniques, and the art of sound reproduction.
* DIY Audio: Learn about do-it-yourself audio projects, audio kits, and tips for crafting your own sound systems.
* Industry Insights: Stay informed about the latest trends, innovations, and news in the audio and sound technology field.
* Music and Sound: Immerse yourself in the world of music, audio production, and the stories of sound enthusiasts.


audioXpress Magazine is your essential resource for celebrating the magic of sound, understanding audio technology, and connecting with a community that values the science and art of sound. Subscribe now and become part of a community that appreciates the power of sound and music.