Careful with heat and I use liquid flux for dodgy soldering...that will not to leave the iron the wire too long... Do the wires that you are trying to solder have a waxy film on them ?? They must really clean and use a pre-tinned pointy tip... Good Luck
Phil
On Wednesday, 2 May 2018, 21:40:47 BST, John C via Groups.Io <jclutterbuck2001@...> wrote:
I'm in the process of re-chipping my K1 with Zimos and am hitting a problem I often have, which is cleanly soldering fine wires.?
I have an ERSA temperature controlled soldering iron with a variety of tips but often find I can't get a clean coating of solder on the tip nor cleanly tin the end of a wire, and then quickly solder such a wire to the tiny connector pads. I've tried both tin&lead and tin&silver cored solders but suspect this may be part of the problem. Should I stick with tin&silver with a dedicated tip? And what size tip is best and should I use any flux?
I would really appreciate some advice from experienced chip fitters.