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  2. Valve amplifier - Wikipedia

    en.wikipedia.org/wiki/Valve_amplifier

    6N3C power tube. 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.

  3. Tube sound - Wikipedia

    en.wikipedia.org/wiki/Tube_sound

    Tube sound (or valve sound) is the characteristic sound associated with a vacuum tube amplifier (valve amplifier in British English), a vacuum tube-based audio amplifier. [1] At first, the concept of tube sound did not exist, because practically all electronic amplification of audio signals was done with vacuum tubes and other comparable ...

  4. Valve audio amplifier - Wikipedia

    en.wikipedia.org/wiki/Valve_audio_amplifier

    A valve audio amplifier or vacuum tube audio amplifier is a valve amplifier used for sound reinforcement, sound recording and reproduction. Until the invention of solid state devices such as the transistor , all electronic amplification was produced by valve (tube) amplifiers.

  5. Instrument amplifier - Wikipedia

    en.wikipedia.org/wiki/Instrument_amplifier

    Amplifiers for harder, heavier genres often use valve amplifiers (known as tube amplifiers in North America) also. Valve amplifiers are perceived by musicians and fans to have a warmer tone than those of transistor amps, particularly when overdriven (turned up to the level that the amplifier starts to clip or shear off the waveforms). Instead ...

  6. Valve RF amplifier - Wikipedia

    en.wikipedia.org/wiki/Valve_RF_amplifier

    A valve RF amplifier (UK and Aus.) or tube amplifier is a device for electrically amplifying the power of an electrical radio frequency signal. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of ...

  7. Jim Kelley Amplifiers - Wikipedia

    en.wikipedia.org/wiki/Jim_Kelley_Amplifiers

    A post master volume, transformer coupled, guitar level effects loop is also provided. [10] In addition, the amp contains much of the same circuitry as the original Single Channel non-reverb amp. In 2020 Jim Kelley began building a two channel version of the Line Amp. Unlike the FACS Line Amp, these amps feature two distinct inputs.

  8. Audio power amplifier - Wikipedia

    en.wikipedia.org/wiki/Audio_power_amplifier

    Audio stereo power amplifier made by McIntosh The internal view of a Mission Cyrus One hi-fi integrated audio amplifier (1984) [1]. An audio power amplifier (or power amp) amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspeakers or headphones.

  9. Guitar amplifier - Wikipedia

    en.wikipedia.org/wiki/Guitar_amplifier

    Mesa-Boogie Mark IV, a guitar combo amplifier. 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.