On Jul 19, 2013, at 12:09 PM, Hardware Mack wrote: > i recommend 60/40 tin/lead solder as well. > you can still get it online… most walk-in places will not carry it any more… > > But yes 60/40 rosen core solder is the best with this vintage stuff… i have a > huge roll that i'v had for 6 years. > once its gone i will be sad.
When I have trouble removing parts from newer boards I'll often use a solder sucker to remove as much of the lead-free solder, then re-solder it with 60/40 solder and THEN use the solder sucker or wick to remove the solder or otherwise remove the part. Replacing the lead-free with leaded solder lowers the melting point (even if the solder is now a mix) and makes it a lot easier to get parts out. It also reduces the likely hood of damaging the board in the process. > > I am pretty sure mcdermd only uses lead free solder. > You just have to be quick, and your iron has to be up all the way. > more heat is not good on the pads :) One of the hardest things to get through to newbies is that a higher heat, hotter iron (within limits) is better because it heats up the work area fast rather than a lower heat iron which takes time to heat up the work area and therefore spreads the heat farther. I'd been soldering for about 40 years, usually just using an un-controlled iron (25 or 50W), when I bought a controlled soldering station. Now I won't go back. I use a wiring pencil a lot, this requires a pretty high (800+ degrees) temperature to burn off the enamel insulation on the wire. The wire is basically a magnetic wire but the enamel coating burns off at a lower temperature than normal mag wire, lower but still pretty high by electronic soldering standards. I previously used an uncontrolled 50 W iron but it tended to be too hot and destroyed tips pretty fast. Using a controlled iron makes it work so much better, it holds the right temperature but has the power available when needed. -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
