Sean,
What mixture are you using? I am using 1.5% Lanth and have not problems at that amperage. Are you using AC or DC? If AC, what is your AC balance. If you are using too much positive time in the balance you most likely will roast your tungsten.
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Sean,
What mixture are you using? I am using 1.5% Lanth and have not problems at that amperage. Are you using AC or DC? If AC, what is your AC balance. If you are using too much positive time in the balance you most likely will roast your tungsten.
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