direct intercom circuit

См. также в других словарях:

• Intercom — Call button redirects here. For call buttons provided to patients in a health care setting, see Nurse call button. Intercom system in the Pittock Mansion An intercom (intercommunication device), talkback or doorphone is a stand alone voice… …   Wikipedia

• Business telephone system — Early model 464G Western Electric key telephone set A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private …   Wikipedia

• Liste der Schaltzeichen (Elektrik/Elektronik) — In diesem Artikel oder Abschnitt fehlen folgende wichtige Informationen: Es fehlen u. a. Schaltzeichen und graphischen Symbole für Akkumulatoren und Primärzellen Koppelstufen Wählerelemente Fernsprecher Sende und Empfangseinrichtunge …   Deutsch Wikipedia

• education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… …   Universalium

• performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical.       The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …   Universalium

• AT&T Merlin — 5 button telephone (voice terminal) manufactured in early 1985 The AT T (also Lucent, now Avaya) Merlin telephone system was introduced in late 1983, branded American Bell Merlin. After the breakup of AT T in 1984, it was rebranded AT T Merlin.… …   Wikipedia

• Law, Crime, and Law Enforcement — ▪ 2006 Introduction Trials of former heads of state, U.S. Supreme Court rulings on eminent domain and the death penalty, and high profile cases against former executives of large corporations were leading legal and criminal issues in 2005.… …   Universalium

• 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

• Live sound mixing — A monitor engineer and console at an outdoor event Live sound mixing is the art of combining and processing a number of audio signals together to create a mix that the audience or performers at a live show hear. There can be a variety of… …   Wikipedia

• Railways in Melbourne — Melbourne rail network  City Loop  Caulfield group  Frankston line  Pakenham line  Sandringham line  Cranbourne line …   Wikipedia

• Three Stooges in popular culture — The Three Stooges comedy routines have inspired generations of tributes in other media. This article provides a partial list of such tributes.Tributes* The Boo Brothers in Scooby Doo Meets the Boo Brothers are obvious parodies of The Three… …   Wikipedia