Founded in 1869, *Western Electric* occupies a unique place in the history of sound and communications. For high-fidelity listeners, its name is inseparable from the *300B vacuum tube*, introduced by Western Electric in 1938 and now regarded as one of the most significant tubes in audio history. More than eight decades later, Western Electric continues to manufacture the 300B by hand at Rossville Works in Georgia, USA. The company also builds the 91E Integrated Amplifier there — a contemporary interpretation of single-ended triode amplification developed specifically around the tube Western Electric created.