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  1. #1

    Default TIG setup on a Lincoln AC225

    Can I run the old school TIG welding setup without high frequency on this? It's AC only.

  2. #2
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    Not without hf box. You need dc to tig weld

  3. #3
    Join Date
    Nov 2012
    Location
    Northern Arizona
    Posts
    513

    Default

    You need a hf box or you can build a rectifier. It will then be a scratch start setup. Ideally you can setup a on/off type switch so you can keep your shielding gas around the end of the weld and stil stop the arc without leaving a crater. A little Google on homemade rectifier should get you a good start
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  4. #4
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    The old school way of welding aluminum if that's what you mean... was DC welding on elec positive. The tungsten burns back quickly but actually welds pretty good. And I guess the ac DC version of that machine is just a added rectifier? So maybe that would work but if it were me I would sell the ac unit and buy something like a old econo tig. That way ya got it all

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