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Diagram showing positive tip polarity on the left and negative tip polarity on the right. To read diagram: The center positive drawing on the left indicates that the center (also known as the tip) of the output plug is positive (+) and the barrel (ring) of the output plug is negative (−). Center positive symbol Center negative symbol
In the motion picture and TV production industries, lighting technicians use extension cords with this connector, usually with 10-12 AWG wire [22], to deliver power to lights rated at 2,000 watts or less.
Cable television, distribution of television programming over a wire instead of by radio broadcast. cavity magnetron A vacuum tube that is a high power microwave oscillator, using a resonant cavity and electrons traveling through a magnetic field. CD A "Compact Disc" used to store digital data or digitally recorded sound using an infrared laser.
In both those instances the white wire should be identified as being hot, usually with black tape inside junction boxes. The neutral wire is identified by gray or white insulated wire, perhaps using stripes or markings. With lamp cord wire the ribbed wire is the neutral, and the smooth wire is the hot. NEC 2008 400.22(f) allows surface marking ...
The connector’s male plug and female jack are called RCA plug and RCA jack. It is also called RCA phono connector [ 5 ] or phono connector . [ 6 ] [ 7 ] The word phono in phono connector is an abbreviation of the word phonograph , because this connector was originally created to allow the connection of a phonograph turntable to a radio receiver.
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Some telephone technicians used mnemonic phrases, such as red-right-ring-rear, or ring-right-red-rough, to remember that the red wire connects to the right-side post in the wall jack and to the ring on the plug and to the rear lug on main distribution frames. Sometimes rough or ridge was added for jumper wires with a tactile code. [citation needed]
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