AutoZone has the Dorman 85362 Soldering Iron for $6 with free in-store pickup or $5 shipping to home. Features 10-volt 30-watt power, 5" cord, and lifetime warranty. Includes a stand.
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we need a soldering guide to go with this
#1 This can desolder too.
A 5" cord is going to be kind of tough to work with...
http://radiojove.gsfc.nasa.gov/telescope/soldering.htm
not much to it really... it becomes habit
Pick the right tip shape and iron wattage for the job.
Make sure the tip and the part/PCB you are soldering are relatively clean.
Wet the tip with solder (only solder, wet does not mean water)
Have the solder in hand then apply heat to the junction between the two things being soldered together - once the iron is hot enough.
Once the two points are hot enough (typically 2-3 seconds is enough) push the solder against the parts, not the soldering iron tip.
Flow enough solder to make a concave pool around the parts that flowed evenly. Do not add too much solder, it is a common beginner mistake.
Hold the part steady with the iron removed till the solder hardens (or if it stays steady on its own don't move it), you will see a slight change in shininess when it has hardened. If it is dull grey it is probably a cold joint that needs resoldered, though lead free solders also end up less shiny but not grainy looking.
Finish by cleaning the iron tip and rewetting it with a little solder, then immediately after rewetting it, turn the iron off to cool. If the rewetting is done well you won't have to rewet it again the next time you start soldering.
Note that this type of iron tends to have a basic copper rod with nickle plating. The rosin in solder will slowly wear away the plating - much faster than with more expensive irons using iron clad tips. To clean it wipe against an abrasive surface like a specifically made for cleaning solder ball or only slightly damp soldering sponge. Don't clean against a very wet sponge, the sudden change in temperature can fracture a tip or flake off the plating.
With these crude nickle over copper tips you will erode a cavity into the middle eventually then it will wear away much faster. At that point you may…
I'm having trouble finding a 10 volt outlet to plug the 5 inch cord into.
If all else fails, you can make a cheap vaporizer out of this.
What were you trying to do?
Harbor Freight has these on sale for $3.99 currently.