information amplifier

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• Guitar amplifier — Mesa Boogie Mark IV, a guitar combo amplifier A guitar amplifier (or guitar amp) is an electronic amplifier designed to make the signal of an electric or acoustic guitar louder so that it will produce sound through a loudspeaker. Most guitar… …   Wikipedia

• Instrument amplifier — This page is about amplifiers for musical instruments. See also instrumentation amplifier, a type of operational amplifier. An instrument amplifier is an electronic amplifier that converts the often barely audible or purely electronic signal from …   Wikipedia

• Switching amplifier — A switching amplifier or class D amplifier is an electronic amplifier which, in contrast to the active resistance used in linear mode AB class amplifiers, uses switching mode of transistor to regulate power delivery. The amplifier, therefore,… …   Wikipedia

• Logarithmic video amplifier — A logarithmic video amplifier or LVA is typically part of radar and electronic countermeasures microwave systems and sonar navigation systems, used to convert a very large dynamic range input power to an output voltage that increases… …   Wikipedia

• Class-D amplifier — Block diagram of a basic switching or PWM (class D) amplifier A class D amplifier or switching amplifier is an electronic amplifier where all power devices (usually MOSFETs) are operated as binary switches. They are either fully on or fully… …   Wikipedia

• Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …   Wikipedia

• Valve audio amplifier — A valve (UK) audio amplifier or vacuum tube (US) audio amplifier is a valve amplifier used for sound recording, reinforcement, or reproduction. Until the invention of solid state devices such as the transistor, all electronic amplification was… …   Wikipedia

• Operational transconductance amplifier — Der Operationsverstärker (Abk. OP, OPV, OV, OpAmp, OA) ist ein elektronischer Verstärker, der einen invertierenden und einen nichtinvertierenden Eingang besitzt und eine sehr hohe Verstärkung aufweist. Als Eingangsschaltung wird immer ein… …   Deutsch Wikipedia

• Rockman (amplifier) — The Rockman is a headphone guitar amplifier. The original Rockman was developed and built by Scholz Research Development, Inc., a company founded by Tom Scholz, who is also a key member of the rock band Boston. SR D was sold to Dunlop… …   Wikipedia

• Asymetrie d'information — Asymétrie d information En économie, on parle d asymétrie d information lors d un échange quand certains des participants disposent d informations pertinentes que d autres n ont pas. Par exemple, les gestionnaires d une société A savent s ils… …   Wikipédia en Français

• Asymétrie D'information — En économie, on parle d asymétrie d information lors d un échange quand certains des participants disposent d informations pertinentes que d autres n ont pas. Par exemple, les gestionnaires d une société A savent s ils sont honnêtes ou s ils… …   Wikipédia en Français