DigiTan
New Member
I recently purchased a new Philmore 40W soldering iron and decided to fire it up to do some circuit work. Throughout the procedure, I couldn't help but notice that one metallic ring on the iron began to change color over the period of about 20 minutes. It started out metallic silver, then shifted to a rusty brown, to blood red, to navy blue. Yeah, blue.
What the heck happened here?!!? I'm guessing this is part of the iron's design, but what is it used for? Does the ring use some form of oxidation?
What the heck happened here?!!? I'm guessing this is part of the iron's design, but what is it used for? Does the ring use some form of oxidation?