On 03.08.16 09:37, andy pugh wrote: > <Stand back, I am a metallurgist>
It shows. ;-) > On 3 August 2016 at 01:19, Gene Heskett <ghesk...@shentel.net> wrote: > > Weller, back in the '50's brought out a soldering iron whose temperature > > was regulated by a magnet on the end of a wire tha > > I have one. Very clever idea, and super-reliable. A very early example > of a "smart material". > I think that the Curie-point is a nickel alloy. It's the only soldering iron I've used these last 42 years. The screw-on whole-package 16-pin DIP desoldering tip was nifty in its day, but now I make more use of a compatible PLATA brand tip (same curie point rear on the tip) with a hollow in the angled flat face nose. Filled with solder, a bit like an old-fashioned pen nib, it solders all the pins on one side of an SMD chip in one stroke, e.g 10 pins per second. With a stripe of flux on the row of pads first, I rarely have a solder bridge to clean up. Erik ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
