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Overhead lines or overhead wires are used to transmit electrical energy to trams, trolleybuses or trains. Overhead line is designed on the principle of one or more overhead wires situated over rail tracks. Feeder stations at regular intervals along the overhead line supply power from the high-voltage grid.
Jerrold Electronics was an American provider of cable television equipment, including subscriber converter boxes, distribution network equipment (amplifiers, multitap outlets), and headend equipment in the United States.
The generic term used by the International Union of Railways for the technology is overhead line. [1] It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire.
High-speed train overhead power lines: 25 kV at 50 Hz, but see the List of railway electrification systems and 25 kV at 60 Hz for exceptions. High-voltage electric power transmission lines: 110 kV and up (1.15 MV is the record; the highest active voltage is 1.10 MV [9]) Lightning: a maximum of around 150 MV. [10]
At the time the only other WTB amp was the WTB1000, which was basically a WT800 with selectable 8-band graphic EQ and one semi-parabolic control. The only similarity between the WTB1000 and the WTB400 and WTB700 was the single semi-parabolic control that could be turned on or off. Otherwise they were entirely different pre-amp and power sections.
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RIEDEL Communications GmbH & Co. KG (formerly Riedel Funk- und Intercomtechnik) is a German manufacturer of communications equipment and an equipment distributor. Riedel was founded in 1987 in Wuppertal, Germany by Thomas Riedel.
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