pole-changing motor

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• Stepper motor — A stepper motor (or step motor) is a brushless, synchronous electric motor that can divide a full rotation into a large number of steps. The motor s position can be controlled precisely, without any feedback mechanism (see open loop control).… …   Wikipedia

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• Märklin Digital — locomotive Märklin Digital was among the earlier digital model railway control systems. It consisted of a full system including locomotive decoders (based on a Motorola chip), central control (Märklin 6021), a computer interface (Märklin 6050),… …   Wikipedia

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• United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …   Universalium