How solder iron work

Discussion in 'General Electronics Chat' started by RRITESH KAKKAR, Nov 8, 2015.

  1. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
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    Hello guys,
    i want to know how solder iron work?
    There are 3 pins one with diode in wire path, why?
     
  2. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    Perhaps the 'diode' is a temperature sensing device?

    More info=better responses!:cool::cool::cool:

    Best regards
    HP
     
  3. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    ADDENDUM:

    Is the diode external to the assembly or is it internal and detected via continuity examination of the leads? (My last post assumed the latter)...
     
  4. DerStrom8

    Well-Known Member

    Feb 20, 2011
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    No pictures? Seriously?
     
  5. blocco a spirale

    AAC Fanatic!

    Jun 18, 2008
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  6. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Sounds like the diode is to put the iron in half wave mode to keep it warm when its in the stand, then you short the diode out for full heat,
     
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