I do a lot of electrical wiring for audio stuff so im trying to learn how to correctly solder simple stuff. I heard somewhere that the lead in the solder can give you cancer, etc. Is this a real ...

By Mike Allen. The most secure and durable way to splice two wires together is to solder them. Period. Use nothing but 60-40 rosin-core solder intended for electrical wiring.

Rosin(R), Rosin-Midly-Activated(RMA) and Rosin Activated(RA) in order of least to most aggressive. He rounds out the video with information and a warning about using “organic” core solder.