Originally Posted by
mtpocketsracing
seems redundant to use rosin core solder and flux paste. I've never needed to use flux on anything with rosin core solder before. (i'm no expert on soldering)
leaded 60/40 or silver solder are both fine. I'm sure you have a radio shack near you. if you do their solder is very good.
tin every part you plan to solder together even the wires. that's the secret. tinning is melting solder to the parts before they're soldered together. you'll have joints that look like a pro did them.
Flux isn't always redundant. I recommend you try it on a new solder job. Doesn't take very much, use in moderation. It helps cut through surface oxidation and junk. Transfers heat for a faster flow/quicker joint, for less heat exposure to circuit boards etc. And helps direct the solder flow. Be sure to get a low activity type I think it is.