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• Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …   Wikipedia

• Operational amplifier — A Signetics μa741 operational amplifier, one of the most successful op amps. An operational amplifier ( op amp ) is a DC coupled high gain electronic voltage amplifier with a differential input and, usually, a single ended output.[1] An op amp… …   Wikipedia

• List of valve amplifier designs — Main article: Valve audio amplifier Some of the best known valve amplifiers are listed here. Contents 1 Leak TL/12 2 Williamson 3 Mullard 5 10 4 Dynaco …   Wikipedia

• Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… …   Wikipedia

• Notable historic valve amplifier designs — Some of the best known valve amplifiers are listed here.Leak TL/12The first commercially produced amplifier with distortion of 0.1% was the LEAK Type 15 Point One of 1945, using KT66 vacuum tubes (valves) connected as triodes, with 26dB feedback… …   Wikipedia

• Audio amplifier — An audio amplifier is an electronic amplifier that amplifies low power audio signals (signals composed primarily of frequencies between 20 hertz to 20,000 hertz, the human range of hearing) to a level suitable for driving loudspeakers and is the… …   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

• Onix Audio — Contents 1 Onix Audio UK Audio Manufacturer 1.1 History 1984 1991 1.2 Design characteristics 1.3 References …   Wikipedia

• List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …   Wikipedia

• Clark-MXR — Clark MXR, Inc. is a company located in Dexter, Michigan USA. It was founded in 1992 by the merger of Clark Instrumentation, Inc. and MXR, Inc. Clark Instrumentation, Inc. was formed in 1987 by Dr. William Clark to manufacture ultrafast pulsed… …   Wikipedia

• Superheterodyne receiver — A 5 tube superheterodyne receiver made in Japan around 1955 In electronics, a superheterodyne receiver (sometimes shortened to superhet) uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency, which… …   Wikipedia