Solder question, older vs newer solder formulas
I overheard some techs talking about solder is not the same today that was used in the past for electronics.
Are they using the same solder formula today that they did say 5 or more years ago? So I'm talking about motherboards, power supplys, computer parts?
They were mentioning silver or lead solder. Is there an article about this that I can read? I been Googling it and not found alot about this exact subject only soldering techniques getting better.