Schematic of Six Tube Design using Triode Tubes – Two Radio Frequency Amplifiers, One Grid-Leak Detector, Three Class ‘ A ’ Audio Amplifiers

* Hatfield, Robert Class D Amplifiers Empower Mobile Multimedia-Gives information on working with Class D amplifiers in mobile platforms

* Harden, Paul Introduction to Class C, D, E and F, The Handiman's Guide to MOSFET " Switched Mode " Amplifiers, Part 1-An article on basic digital RF amplifier design intended for ham radio operators but applicable to audio Class D amplifiers.

By using a noncollinear interaction geometry Optical Parametric Amplifiers are capable of extremely broad amplification bandwidths.

Amplifiers are non-linear, therefore every time a signal is amplified in a telecommunications network, which can happen dozens of times on a circuit, noise and distortion are added.

Amplifiers use current or voltage as input and output, so four types of amplifier are possible.

Amplifiers are not ideal ; they also have some output impedance that limits the amount of power they can provide.

Amplifiers may oscillate gently in ways that are hard to detect without an oscilloscope, or the oscillations may be so extensive that only a very distorted or no required signal at all gets through, or that damage occurs.

Amplifiers are limited in the electrical energy they can amplify, while loudspeakers are limited in the electrical energy they can convert to sound energy without distorting the audio signal or damaging themselves.

Amplifiers are valued in part by their power output capacity.

A 3 x 6 " stack " of Marshall guitar cabinets on stage Amplifiers of this type, such as Marshall amplifiers, are used in a range of the louder, heavier genres of rock, including hard rock, heavy metal, and hardcore punk.

Amplifiers may use vacuum tubes ( in Britain they are called valves ), or solid-state ( transistor ) devices, or both.

Amplifiers used with electric guitars may be solid-state, which are lighter in weight and less expensive than tube amplifiers.

Amplifiers of this type, such as Marshall amplifiers, are used in a range of genres, including hard rock, metal ( though they are often boosted with a pedal for more gain ), and punk.

Amplifiers included in a filter design can be used to improve the performance and predictability of a filter, while avoiding the need for inductors ( which are typically expensive compared to other components ).

Today, the XL and HyDrive cabinets are only part of Hartke ’ s line of bass gear, which also features LH and HA Series Bass Amplifiers, AK and VX Series Bass Cabinets, countless accessories for bass and much more.

Amplifiers, filters, and other devices are often categorized by their amplitude and / or phase response.

These components are used in interoffice, loop feeder, Fiber In The Loop ( FITL ), Hybrid Fiber-Coaxial Cable ( HFC ), Synchronous Optical Network ( SONET ), and Synchronous Digital Hierarchy ( SDH ) systems ; and other telecommunications networks employing optical communications systems that utilize Optical Fiber Amplifiers ( OFAs ) and Dense Wavelength Division Multiplexer ( DWDM ) systems.

Amplifiers for harder, heavier genres often use valve amplifiers ( known as " tube amplifiers " in North America ) also.

Amplifiers may be classified in a variety of ways depending on their application, the frequency range they cover, or the active devices used.

In RF linear Power Amplifiers, such as cellular base stations and broadcast transmitters, special design techniques can be used to improve efficiency.

Amplifiers can be specified according to their input and output properties.

Amplifiers rated at 100 watts at 14. 4 volts can not be regarded equal as to an amplifier that can maintain 100 watts at 12 volts.

Instrumentation Amplifiers can also be designed using " Indirect Current-feedback Architecture ", which extend the operating range of these amplifiers to the negative power supply rail, and in some cases the positive power supply rail.

Amplifiers can therefore be safely specified to operate into a load that has this nominal impedance ( or higher, but not lower ).

It was designed to be used in conjunction with Farfisa's Amplifiers, and had a multi-pin cable that connected the controls of the accordion, with the controls of the amplifier, or the F / AR Reverb preamp power supply unit.

Milbert Amplifiers is a company which, in collaboration with The David Berning Company, reintroduced, in 1986, vacuum tube audio amplifiers to the automobile, utilizing vacuum tubes for audio amplification and transistors in high voltage switching power supplies ( SMPS ).

Amplifiers with processors and software emulate the sound of a classic amp well, but from the player's point of view the response of these amplifiers may not feel the same as the digital modeling does not accurately model all aspects of a tube amplifier.

* Randall Amplifiers, a manufacturer of guitar amplifiers

Matchless Amplifiers is a Los Angeles based company which designs and makes electric guitar amplifiers, specializing in class A tube circuitry.

Due to financial problems, Matchless Amplifiers closed down in 1998 but reopened in 2000 under new administration and is currently manufacturing several lines of amplifiers and speaker cabinet enclosures.

* Basic Operational Amplifiers and Linear Integrated Circuits ; 2nd Ed ; Thomas L Floyd ; David Buchla ; 593 pages ; 1998 ; ISBN 978-0-13-082987-0.

* Design with Operational Amplifiers and Analog Integrated Circuits ; 3rd Ed ; Sergio Franco ; 672 pages ; 2002 ; ISBN 978-0-07-232084-8.

* Operational Amplifiers and Linear Integrated Circuits ; 6th Ed ; Robert F Coughlin ; 529 pages ; 2000 ; ISBN 978-0-13-014991-6.

* Amplifiers and attenuators in output fibers that adjust the signal to the digital “ 0 ” power range ( when the fiber is not switched to ) or to the normal power range when it is ( e. g., ).

Amplifiers and speakers behind Emerson became more elaborate, including a Leslie unit.

* Robert F. Coughlin, Frederick F. Driscoll, Operational Amplifiers and Linear Integrated Circuits.

Ford uses Dumble Amplifiers and Celestion G12-65 speakers.

Amplifiers, being electronic devices, have power limitations deriving from both their electrical and mechanical properties.

When recording started on " Cryptic Writings, Marty switched to Crate Amplifiers.

" From Mechanisms of Adaptation to Intelligence Amplifiers: The Philosophy of W. Ross Ashby ," in Michael Wheeler, Philip Husbands and Owen Holland ( eds.