Hi Nigel,Nigel Goodwin said:Even a slight amount of soldering skill prevents any heat damage, there's no need for temperature controlled irons to do so.
I mentioned my Weller temp-controlled iron because there are some people still using a plumber's 100W soldering gun that gets so hot that its tip gets badly corroded and the solder's flux instantly disappears.
They might need about a full 10 seconds to make a bad solder joint while my temp-controlled iron makes an excellent joint in about 1/2 second with much less heating.
I also recommend using 63/37 rosin flux core solder. It "sets" abruptly like a Schmitt trigger. Ordinary 60/40 solder slowly solidifies causing bad joints if anything moves. :lol: