When I was in high school rosin core was used and the teacher talked about it like it was some great forgiving stuff that even if you didn’t use enough flux the

When I was in high school rosin core was used and the teacher talked about it like it was some great forgiving stuff that even if you didn’t use enough flux the core would help you but I agreed messy. I am however used to working on a poor mans budget and only do home electronics, last thing I did was solder and hack a Xbox 360 and rosin core is the only solder around here you can find so I make do. Also can’t buy flux without ordering online so I ended up collecting pine sap and soaking it in alcohol then filtering and evaporate the alcohol to make my own flux. It actually works just as well as any commercial flux I have used.