bell pulse
81Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… …
82Shannon–Hartley theorem — In information theory, the Shannon–Hartley theorem tells the maximum rate at which information can be transmitted over a communications channel of a specified bandwidth in the presence of noise. It is an application of the noisy channel coding… …
83Rico Rodriguez discography — 1958 to 1961=ingles/single sidesAll tracks recorded in Jamaica before 1962 (and Rico s departure for England). It is possible that some recording sessions included Don Drummond and Rico Rodriguez on trombone. (cf. photo on the Heartbeat CD Ska… …
84Abréviations de l'aéronautique — Les abréviations sont souvent employées en aéronautique, voici les principales sous forme de tableau avec l abréviation, la signification anglaise et la traduction française pour les abréviations anglophones et bien sûr l abréviation et sa… …
85sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …
86Acupuncture — Intervention Needles being inserted into a patient s skin. ICD 10 PCS 8E0H30Z …
87Transistor — For other uses, see Transistor (disambiguation). Assorted discrete transistors. Packages in order from top to bottom: TO 3, TO 126, TO 92, SOT 23 A transistor is a semiconductor device used to amplify and switch electronic signals and power. It… …
88Metal detector — A U.S. Army soldier uses a metal detector to search for weapons and ammunition in Iraq A metal detector is a device which responds to metal that may not be readily apparent. The simplest form of a metal detector consists of an oscillator… …
89Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
90David Gilmour — For other people named David Gilmour, see David Gilmour (disambiguation). David Gilmour Gilmour playing his iconic black Fender Stratocaster in concert in Munich, Germany on 29 July 2006 …
