> I've noticed that some solder pens besides coming with
> different tips,
> they have different heating elements as well, i.e. they are rated at
> different wattages. So depending on what you are soldering you might
> match the wattage of the tip to the job.
The ones they use at work are thermostatically controlled, so even a big
heating element won't overheat the tip. Then the tips come in different
sizes as well, to suit the job at hand.
Weller is an old, well respected brand:
http://tinyurl.com/24xobnp
However, I suspect that even a cheap controlled iron is better than the best
uncontrolled iron for doing PCB work:
http://www.warnerstainedglass.com/product.aspx?id=5110-103
Randall
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