On 2/7/11 7:07 AM, Bert Hickman wrote:
David Steinberg wrote:Thank you all for your suggestions. I'm considering the glass enclosure with argon gas. As I've never worked with glass enclosures or argon before, I have a couple of questions: 1. What length of arc should I expect?The breakdown and reignition voltage of argon is considerably lower than air, and an argon arc will typically be ~5X the length of an arc in air under identical conditions.
that much longer?I never seem to get that... twice is the best I've been able to do. Maybe it's convection/electrode shape/heating dependent? I haven't tried a jacob's ladder in argon, just a drawn arc between two hemispheres or conical points.
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