I have a variable soldering iron that uses 24v 50w heating elements.
I'm wondering how the temperature is controlled, is the 24vac constant and pulsed per setting or is it like a light dimmer where it operates in any range up to 24vac?
Also the heating element itself, I noticed one end has another wire twisted to it which is then spot welded to the wire that is soldered on the PCB of the iron. Curious why only one end is twisted with another wire and not both sides?
I'm wondering how the temperature is controlled, is the 24vac constant and pulsed per setting or is it like a light dimmer where it operates in any range up to 24vac?
Also the heating element itself, I noticed one end has another wire twisted to it which is then spot welded to the wire that is soldered on the PCB of the iron. Curious why only one end is twisted with another wire and not both sides?
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