Wire wrap — This article deals with electronics manufacturing and prototyping techniques, see Wire wrap jewellery for the jewellery related topic Wire wrap is a technique for constructing small numbers of complex electronics assemblies. It is an alternative… … Wikipedia
Circuit switching — is a methodology of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate. The circuit guarantees the full bandwidth of the … Wikipedia
Two-phase electric power — Two phase electrical power was an early 20th century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by 90 degrees. Usually circuits used four wires, two for each phase. Less … Wikipedia
Wire — For other uses, see Wire (disambiguation). Wires overhead A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical loads and to carry electricity and telecommunications signals. Wire is commonly… … Wikipedia
Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear … Wikipedia
Control grid — The control grid is an electrode used in thermionic valves (vacuum tubes) used to modulate the flow of electrons in the cathode to anode or plate circuit. Contents 1 Operation 2 Construction 3 Effects of grid position … Wikipedia
Wire spring relay — A wire spring relay is a type of relay, primarily manufactured by the Western Electric Company for use by the Bell System in electromechanical telephone exchanges. It was licenced for use around the world, and was commonplace in Japan. A wire… … Wikipedia
Fire alarm control panel — A fire alarm control panel (FACP), also called a fire alarm panel. Technicians usually refer to the FACP as the panel. A fire alarm control panel is the central control device that receives information from input devices (smoke detectors, heat… … Wikipedia
Fan control — is the management of the rotational speed of an electric fan. There are many types of electric fans and many types of fan controls. This article principally describes the control of a computer fan, to provide adequate cooling while lowering noise … Wikipedia
Aircraft flight control systems — consist of flight control surfaces, the respective cockpit controls, connecting linkages, and the necessary operating mechanisms to control an aircraft s direction in flight. Aircraft engine controls are also considered as flight controls as they … Wikipedia
Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… … Wikipedia