First Plasma
Posted: Sat Aug 12, 2017 6:59 am
Over the course of the last 3 days I put together a rough demo fusor. I am using my homemade supply an aluminum vacuum chamber with silicone seals and a glass! window. All feed throughs (HV cables and vacuum hosebarb) are sealed with epoxy. The grids are made of stainless steel wire, the outer grid has solder joints while the inner grid is wound together (very low quality build, put it together quickly). The fusor drew 20mA-50mA (I didnt go further) @ a few 100V-1kV-2kV indicating that I do not have a very deep vacuum. I do not have any vacuum gauge other than "will it boil!?" (cold water boils so I have atleast 1000 Microns, also replace your pump oil if you do this). I am able to run for 10+ minutes without the supply or the grid getting dangerously hot, so I think I might be able to run it indefinetly.
Here a picture confirming the plasma:
The epoxy seal for the hose barb leaks like crazy so I am working on fixing that right now.
Finally I should mention that the external shell is connected to earth ground. As a result the outer grid sometimes arcs to the shell.
Here a picture confirming the plasma:
The epoxy seal for the hose barb leaks like crazy so I am working on fixing that right now.
Finally I should mention that the external shell is connected to earth ground. As a result the outer grid sometimes arcs to the shell.