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  1. 12th June 2010, 01:51 PM #1
    Grahame Collins's Avatar
    Grahame Collins
    Grahame Collins is offline Super Moderator
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    Default HF start box plans

    Hi all,
    A while back somebody was looking for the plans to a High Frequency start box.
    This is a unit that attaches to an AC Transformer welder and initiates a non touch arc start .
    A typical application is for a cheap Alumium TIG welder.

    It does require a good deal of electrical knowledge so the usual safety admonitions about electrical safety and regulations apply.

    High-Frequency Start Box

    Grahame

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  3. 12th June 2010, 08:56 PM #2
    Edd's Avatar
    Edd
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    Default

    That was me - thanks Grahame.

    I think I already linked to that site as that was the one that I used to build it in the end. More discussion was in the thread I created here and the one I linked to on CNCZone.

    We've only just got argon again after nearly 2 years of no gas, so I'm going to try it out ASAP. (I have tested it in air without welding current - works. Tried it in air with welding current and it sort of started an arc, but the tungsten went black and everything smelled horrible. Note I wasn't trying to weld, just see if the HF collapsed under welding current. I will try it with gas soon.)
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