sound-amplifying
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Sound system — may refer to:*sound reinforcement system, a system for amplifying audio for an audience. *sound system (DJ), a group of DJs contributing and working together as one. **Sound system (Jamaican) is a group of disc jockeys, engineers and MCs playing… … Wikipedia
sound man — n. technician in charge of amplifying sound or sound effects (for a television or radio broadcast, etc.) … English contemporary dictionary
Directly amplifying receiver — The Directly amplifying radio receiver is one example of the many different possible designs for a radio receiver. It contains a radio resonance filter, followed by a two stage radio frequency (RF) amplifier, a diode detector, and a sound (audio) … Wikipedia
Cochlear implant — A cochlear implant (CI) is a surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing. The cochlear implant is often referred to as a bionic ear. As of December 2010,… … Wikipedia
Donald Beatty — Donald Croom Beatty (April 11, 1900 – July 12, 1980) was an American aviator, explorer, and inventor. Beatty was the son of Isaac Beatty, Jr and Hughie Duffee Beatty of Birmingham, Alabama (USA). He began his flying career as a teenager by… … Wikipedia
United States Supreme Court cases involving Jehovah's Witnesses — Since the 1940s, the Jehovah s Witnesses have often invoked the First Amendment s freedom of religion clauses to protect their ability to engage in the that is central to their faith. This series of litigation has helped to define civil liberties … Wikipedia
soundman — sound·man (soundʹmăn ) n. One in charge of recording, transmitting, or amplifying sound or of producing sound effects, as for a television or radio broadcast. * * * … Universalium
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
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia
electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… … Universalium
Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios … Wikipedia
