thyristor drive
41TRAXX — Bombardier TRAXX family (electric) TRAXX F140 AC1 : Deutsche Bahn AG Class 185 Power type electric Builder Bombardier Transportation Model TRAXX F140 AC …
42ship — shipless, adj. shiplessly, adv. /ship/, n., v., shipped, shipping. n. 1. a vessel, esp. a large oceangoing one propelled by sails or engines. 2. Naut. a. a sailing vessel square rigged on all of three or more masts, having jibs, staysails, and a… …
43Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …
44Ward Leonard control — Ward Leonard Control, also known as the Ward Leonard Drive System, was a widely used DC motor speed control system introduced by Harry Ward Leonard in 1891. In early 1900s, the control system of Ward Leonard was adopted by the U.S Navy and also… …
45Microelectromechanical system oscillator — Microelectromechanical system (MEMS) oscillators are timing devices that generate highly stable reference frequencies. These reference frequencies are used to sequence electronic systems, manage data transfer, define radio frequencies, and… …
46AC motor — An AC motor is an electric motor that is driven by an alternating current. It consists of two basic parts, an outside stationary stator having coils supplied with AC current to produce a rotating magnetic field, and an inside rotor attached to… …
47Servomechanism — [ thumb|right|200px|Industrial servomotor The grey/green cylinder is the brush type DC motor. The black section at the bottom contains the planetary reduction gear, and the black object atop the motor is the optical encoder for position feedback …
48London Underground 1996 Stock — Infobox Underground stock name=1996 Stock InService=1997 present Manufacturer=GEC Alstom LinesServed=Jubilee CarLength=17.77m CarWidth=2.629m CarHeight=2.875m MaxSpeed=100 km/h (62 mph) Weight=DM 30.0 tonnes UNDM 27.1 tonnes T 20.9 tonnes… …
49London Underground 1995 Stock — Infobox Underground stock name=1995 Stock InService=1998 present Manufacturer=Alstom LinesServed=Northern CarLength=17.77 m CarWidth=2.63 m CarHeight=2.875 m MaxSpeed=100 km/h (62mph) Weight=DM 29.4 tonnes UNDM 27.9 tonnes T 21.5 tonnes TubeStock …
50Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …
