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Wiring Tools

Wiring Tools

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solderWhile it is possible to do some wiring without soldering connections, soldering is the preferred approach. Proper soldering is easy with the right tools and techniques. One item that is critical is the right solder. This roll of SN63 rosin core solder can be used for any kind of joint on a model railroad. DO NOT use the environmentally friendly lead free solders, they don't work worth a damn. Even in carefully controlled industrial conditions, lead free solders produce inferior connections. As much as the politicians backed by environmentalists would like to, they can't legislate metallurgy.


solder wickSometimes after you have managed to get some solder on a joint, you find that you have to take the joint apart and get the excess solder off. Solder Wick is a rosin impregnated copper braid that is used to wick off excess solder by capillary action. Obviously, this is a single use tool. Once the wick is saturated with solder, it is clipped off and discarded.


soldering stationFor most work, you should use a temperature controlled soldering station. These are fairly expensive items, ranging to from $60 up, but they are necessary. A cheap soldering iron will usually run too hot and the tips don't last. Soldering guns are too clumsy, the tips are too big, and the run too hot for fine wiring. This soldering station regulates temperature by changing the tip, other kinds have a temperature adjustment. Most work can be done at 700 degrees F.


soldering gunFor heavier work, such as track soldering, a larger heat source is necessary. This Weller 250 watt soldering gun is the ticket. You won't be able to use it for much else, but if you solder track, you'll need something like it.


wire strippersTo strip insulation on wire, you need a pair of wire strippers. Between them, these tools will strip wire from 30 GA to 10 GA. The one with the red handles will also crimp lugs and cut screws. There are fancier strippers available, but they really aren't necessary for modeling work. The better, and more expensive, semiautomatic or thermal strippers will tend to nick wire less often.


rj-11 crimp toolThis tool is used to crimp on the RJ-11 modular telephone connectors on ribbon cable. This is a quick and easy process. You'll need this tool if you use one of the DCC systems that uses RJ-11 connectors in their throttle busses. Other tools are available to crimp on the larger RJ-45 connectors used in 10BaseT Ethernet installations.


hair dryerOnce a connection is made, it should be insulated with heat shrink tubing. This tubing will shrink around a connection when heated with very hot air. An ordinary 1200 watt hair dryer is usually sufficient for light duty work. you should buy some tubing in several small sizes, 1/16", 3/32" and 1/8" diameter tubing will cover the majority of requirements.

Do not try to use electrical tape to insulate connections. The stuff will eventually unravel or slide off the connection.


metersTo do basic troubleshooting, you'll need a couple of multimeters. Often two measurements have to be made at once, so having two meters is handy. One can usually be a real cheap meter like the sub $10 meter on the left. The other should be a good digital meter. Try to find one with 10 amp AC and DC current ranges in addition to the normal DCV, ACV and resistance ranges. 3-1/2 digit precision is adequate for hobby work. I found this meter on sale for less than $30.


clip leadsA dozen or so small alligator clip leads are essential for a test bench to make test connections. You can find leads like this at Radio Shack or other electronics stores.



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© 1999 George Schreyer
Created Dec 4, 1999
Last Updated Dec 4, 1999