From: Jon E. <el...@pi...> - 2012-02-22 02:53:12
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andy pugh wrote: > On 21 February 2012 19:07, gene heskett <ghe...@wd...> wrote: > > >> Two things. Weller designs to make sure they have a steady market in >> repair parts. The first of their irons I ever had, was the original black >> one that used the curie point of an iron button in the back of the tip and >> you could buy tips in 50F increments from about 500F up. >> > > As a Materials Scientist by training, I consider this such an > appealingly clever idea that I intend to stick with those irons > indefinitely. > Of course, I probably don't solder for more than an hour a week, so > 1000 hour life is fine. > These are pretty obsolete, and may not give the kind of rapid temperature control that is needed for delicate stuff. The ones with digital temp display are generally better. Then you don't need to shut off and swap tips to up the temp a little, either. Jon |