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  • high frequency?

    This may be a dumb question but im going to ask it anyway. I have an older miller sycrowave 250 and it has a high frequency dial on it that goes from 0 to 100. I understand how it works and what it does, but i was wondering, how high or low should i have it set and when would i need to adjust it.

  • #2
    http://www.millerwelds.com/resources/TIGhandbook/
    Ed Conley
    http://www.screamingbroccoli.net/
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    • #3
      Mark Lindquist

      I have the same machine. I have it wired to a 70 amp fused disconnect. On my first usage I had it set at 50 and lost my dsl modem and cell phone. Sence then ive had it set at 10 with no problems and satisfactory use. You just need to keep the arc going through the a/c cycle ie 0/230/0 while welding with a/c. Welding with dc I believe they use capacitors to smooth the waveform.

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