Tube amplifier

A tube amplifier is a sound amplifier that uses vacuum tubes instead of transistors to amplify signal. Some people think the sound from tube amplifiers is better than transistor-based amplifiers. Even the measured distortion would be higher with vacuum tubes.

Tube Amplifier Media

This 6N3C power tube is installed in a Fender Bandmaster Reverb guitar tube amplifier. The blue glow in the power tubes is caused by electrons colliding with gas molecules. The faint red glow in the power tubes is "red plating" caused by excessive electron flow hitting the tube plates (anodes).
Circuit diagram of a single-ended triode
A single-ended class 'A' guitar amplifier chassis, with additional GZ34 valve rectifier installed.
Bandmaster Reverb Chassis Again
McIntosh MC240 from 1961 with exposed vacuum tubes
A pre-amplifier design using all power tubes instead of small signal tubes

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