How Vacuum Tubes Work plus What is Single-Ended, Class A, B, AB, ultralinear, etc?

How Vacuum Tubes are made and everything else from A to Z
by ERIC BARBOUR at < /p>

Tubes Do Something Special
By Peter van Willenswaard , Stereophile, September, 2000

Balanced operation: Benefit or Bluff?
by Martin Colloms, Vol.17No.11,Stereophile, November, 1994

Why a Preamp?
Thomas J. Norton, Vol.17No.1, Stereophile, January, 1994

A Future Without Feedback?
by Martin Colloms, Stereophile, January 1998

Decibel Comparison Chart, November 1996

Energy Storage in Capacitor Power Supplies
by Roger Hebert, Wyetech Labs, December 2000 - June 2012

God is in the Nuances
by Markus Sauer, Stereophile, January 2000

Scientists vs Audiophiles 1999
Art by George Reisch, Stereophile, March 1999

Simple Truths About Good Sound
Three audiophile label heads sound off about how to build a home-entertainment system worthy of the music you love.
By David Berg-Seiter, Jazziz Magazine, March 2000

The Negative Effects of Feedback
by Roger Hebert, Wyetech Labs, May 2000 - June 2012

Audio Basics: A Is For Ampere
J. Gordon Holt, Vol.14No.3, March, 1991