amp tubes

Courtesy of Telefunken

Welcome to the tube zoo, where you’ll get to know about the nature and habits of output and preamp tubes. And how they perform in the wilds of amplification—and in your own amp.

Of all the tonally tweakable elements in the extensive chain of components that define your sound as a guitarist, the tubes tucked into your amplifier might be the most enigmatic. Working symbiotically with the circuits and transformers housed alongside them, these tubes help to determine the way your playing is translated, from the signal produced at the guitar’s pickups to the sound waves ultimately pumped into the air by the speaker and broadcast to listeners’ ears. Given their role in the signal chain, tubes can greatly influence the feel of your playing, as well as the sound.

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