Pretty basic question but I am struggling to find the words to get the correct search result. The soldering iron I bought came with very narrow tips that I think are supposed to be used for circuit boards and components.
When I attempt to solder lines from a USB cord together the line never gets warm enough.
I remember in the past soldering copper lines together from an appliance with no issue so I don’t think I’m doing anything wrong in terms of technique but who knows?
I had this problem when I started using a modern iron.
https://ae01.alicdn.com/kf/HTB12ehjXyLxK1Rjy0Ffq6zYdVXai/TS100-Soldering-Iron-tips-Lead-Free-Replacement-Various-models-of-Tip-Electric-Soldering-Iron-Tip.jpg
3rd from the left solved the problem. Somebody instructed me it’s about the thermal mass, the more mass in the tip, the better it handles soldering wires etc