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Historically, it has been far more popular with high fidelity stereo manufacturers than guitar amplifier builders, given its characteristics of high-power and low-distortion. Due to these characteristics, it is regularly used to replace 6550 tubes by end users seeking a guitar amplifier tone with less distortion. [ 6 ]
A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers in the 1960s and 1970s.
Rear view of a valve combo guitar amplifier. Visible are two glass 6L6 output tubes, six smaller 12AX7 preamp tubes in their metal tube retainers and both the power transformer and the output transformer. Guitar amplifiers are often designed so they can, when desired by the guitarist, distort and create a tone rich in harmonics and overtones.
The 6550 is a beam power tube designed by Tung-Sol for application as an audio frequency power amplifier and introduced in 1954. [ 136 ] [ 137 ] Tung-Sol literature refers to the 6550 variously as a beam power amplifier, power pentode and beam pentode, with the latter two names viewing the beam confining structure as a fifth electrode.
A guitar amplifier (or amp) is an electronic device or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which are typically housed in a wooden cabinet.
Vacuum tubes used in electric guitar amplifiers. Particularly the ones that played important role in shaping modern image of tube sound, as well as notable former and current manufacturers of those tubes.