Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
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So I got this gauge (2000+ new) for like $200 on eBay and I've been having some issues with it. I attached it directly to the output of my diff pump and pulled a vacuum through it with my backing pump, and got like 15 torr. The pump was very loud, so I assumed it was my shoddy job of re-using a conflat gasket. I replaced the gasket, and when I pulled vacuum again the pump was whisper-quiet after I closed the ballast. However, the gauge still read 15 torr. This may be an internal issue with my gauge, but I was wondering if this auditory indicator is a valid way of determining vacuum quality.
Some say the glass is half full. Others see it as half empty. I say it is twice as big as it needs to be.