Noisy Edwards EXT250 Pump

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.
Silviu Tamasdan
Posts: 147
Joined: Wed Jun 28, 2006 11:17 pm
Real name: Silviu Tamasdan
Location: Connecticut

Re: Noisy Edwards EXT250 Pump

Post by Silviu Tamasdan » Tue Aug 22, 2017 3:39 pm

Thank you! That is exactly what I was looking for.
But you're right. I may pass onto this one. Especially since a pump+controller would set me back about $600 total, and since they're so problematic I'm going to stay with the small diffusion pump I have. But I'll save those documents just in case I change my mind at some point.
There _is_ madness to my method.

David Kunkle
Posts: 285
Joined: Thu Apr 17, 2014 4:43 pm
Real name: David Kunkle

Re: Noisy Edwards EXT250 Pump

Post by David Kunkle » Tue Aug 22, 2017 10:42 pm

I read a while ago that the smaller pumps like the 50 or 70 lps turbos were a lot more bulletproof and less prone to bearing failure. I believe those are big enough for most fusor chambers. You may want to consider something along those lines.
If your experiment needs statistics, you ought to have done a better experiment.

Ernest Rutherford

Silviu Tamasdan
Posts: 147
Joined: Wed Jun 28, 2006 11:17 pm
Real name: Silviu Tamasdan
Location: Connecticut

Re: Noisy Edwards EXT250 Pump

Post by Silviu Tamasdan » Wed Aug 23, 2017 11:18 am

If I can find one. They seem to be fairly rare.
There _is_ madness to my method.

Post Reply