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Example part numbers are any of TE Connectivity / AMP 170204-* (loose pieces) or 170262-* (pieces supplied in strips), where * is 1 or 2 or 4. [2] [3] The male PCB connector on the 3½-inch floppy drive is normally a polarized right-angle male header, which is a TE Connectivity / AMP 171826-4, [4] the straight model is AMP 171825-4. [5]
The telephone jack of manual telephone switchboards, which is the socket fitting the original 1 ⁄ 4 inch (6.35 mm) telephone plug; The 1 ⁄ 4 inch (6.35 mm) phone jack common to many electronic applications in various configurations, sometimes referred to as a headphone jack
7.854 × 10 −7 square inches (1 square inch is about 1.273 million circular mils) 5.067 × 10 −10 square metres; 5.067 × 10 −4 square millimetres; 506.7 μm 2; 1000 circular mils = 1 MCM or 1 kcmil, and is (approximately) equal to: 0.5067 mm 2, so 2 kcmil ≈ 1 mm 2 (a 1.3% error)
EMT is available in trade sizes 1/2" through 4", and 10′ and 20′ lengths. Some manufacturers also produce EMT in a range of colors for easy system identification. Aluminum conduit, similar to galvanized steel conduit, is a rigid tube, generally used in commercial and industrial applications where a higher resistance to corrosion is needed.
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 ...
IDC D-Sub connectors DE-9 (male) and DA-15 (female) A male PCB-mounting DD-50 connector (plug) There are many different methods used to attach wires to the contacts in D-sub connectors. Solder-bucket (or solder-cup) contacts have a cavity into which the stripped wire is inserted and hand-soldered.
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Instead of heating up the explosive, the EBW detonator wire is heated so quickly by the high firing current that the wire actually vaporizes and explodes due to electric resistance heating. [20] That electrically-driven explosion causes the low-density initiating explosive (usually PETN ) to detonate, which in turn detonates a higher density ...