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Subject: | Re: [geda-user] Soldering Station suggestions |
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From: | Dave McGuire <mcguire AT neurotica DOT com> |
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Date: | Mon, 14 Oct 2013 22:31:41 -0400 |
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Umm, unless I'm mistaken, the SmartHeat irons (which includes the SP200, not sure about the MX500) uses an RF impedance-based sensor to determine the amount of metal mass next to the tip, and beefs up the heater current to match in real time. I'm pretty sure I have a schematic of that somewhere. -Dave -- Dave McGuire, AK4HZ New Kensington, PA On Oct 14, 2013, at 9:59 PM, DJ Delorie <dj AT delorie DOT com> wrote: > The Metcals don't use electronic temperature control, they use > Physics! The tips are only magnetic up to a specific temperature, and > only accept energy from the coils within when they're magnetic, so > they "just stop" heating up at that temp. > > Tips are available in a range of temperatures, from 500F to 800F.
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