You can get plastic screw connectors (or terminal blocks) which come in strips to connect low voltage wires together (eg. 15V). However, I have also seen a variation of this where you buy a pair of these, and one strip has pins on one side, and the other sockets, which can be plugged in and disconnected for ease of use. What are these called and where can I find them?

Is it better to use the electrical connectors or is it better to solder?

I am trying to extend the length of an electrical wire. A simple way to do that has been to use connector wires with alligator clips on both ends and use that to extend the connection. What I am interested is whether these alligator clip connectors will drop the current or the voltage? I've measured the resistance of the circuit with and without the alligator connectors, they are roughly the same. 2.060 M ohm vs 2.054 M ohm. Should I continue to use alligator clips or should I get new connector wires and solder them in for a better connection? Is there a significant difference between alligator clips and a soldered connection? The resistance doesn't seem to indicate much of a difference.

Automobile engines use a myraid of senors and electronically controlled devices. Many of which have unique connectors with multiple pins. In my case, I need the clip or plug that connects onto the Vehiclest Speed Sensor (VSS) for a 1995 integra. Trips to junkyards have been unsucessfull. Many used part retailers will not cut a plug from a good harness. According to my research the VSS used in integras from 1994-2001 were not used in other vehicles ( http://www.tomco-inc.com/Catalog/vehicle%20speed%20sensors.pdf ) . The oem part number is 78410-st7-003.... Who makes these connectors? Does anybody stock them? Honda/Acura will sell a compete haness for several hundred dollars. This particular one is hard to find on ebay. Which is where I acquired the damaged one I have now. I've tried to modify civic/accord plugs without success.