Scott,
Soldering is an easy, but often misunderstood thing. If your solder joints are "ugly", they could lead to problems.
My soldering tips:
- Buy a nice soldering iron with detachable tips. 25watts should be fine.
- Let the iron heat up completely before using.
- Keep the tip clean by using a wet sponge to wipe away solder residue.
- Before turning the iron off, melt a decent amount of solder on it and do not wipe it off. This protects the tip from oxidization and makes them last longer.
- Before soldering any two things together, tin them first. This means you melt a little bit of solder on each wire before joining them together.
So for instance, if you're soldering a wire to a pot, strip the wire, hold it to the tip of the soldering iron, and then put some solder on the wire until it flows nicely. Do the same to the lug on the pot. Hold the iron to it and put a little solder on it until it flows. Not too much, and don't hold the iron there too long or else it could cause some damage.
Now, when it comes time to attach the wire to the lug, they will solder together with hardly any heat from the soldering iron.
Wipe the tip, put a little solder on the tip, and start your next connection in the same way.