Search found 6 matches

by Pascal Mueller
Sat Aug 03, 2019 12:00 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: High Voltage Feedthru, Richards design
Replies: 9
Views: 7239

Re: High Voltage Feedthru, Richards design

Ah I see, I thought that he wrote it down in a thread somewhere - don't know, just kind of expected it like that. Maybe because a lot of FAQs etc. are from him. Anyway, I'm going to check it out, thanks! :)
by Pascal Mueller
Fri Aug 02, 2019 2:09 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: High Voltage Feedthru, Richards design
Replies: 9
Views: 7239

Re: High Voltage Feedthru, Richards design

Hi,

where can I find more information about this design? I searched Richard Hull's threads but I wasn't able to find one about a feedthrough design.

Thanks
by Pascal Mueller
Sun Dec 23, 2018 9:18 pm
Forum: FAQs: Vacuum Technology
Topic: #2 FAQ - Mechanical Pump - Diffusion pump?
Replies: 41
Views: 30184

Re: #2 FAQ - Mechanical Pump - Diffusion pump?

Dear John,

wasn't sure where to post - though since I quote information from the FAQ I should ask it here.

And yeah, of course I still have a lot of reading to do! Thanks for the input and sorry for the wrong posting.
by Pascal Mueller
Sun Dec 23, 2018 7:58 pm
Forum: FAQs: Vacuum Technology
Topic: #2 FAQ - Mechanical Pump - Diffusion pump?
Replies: 41
Views: 30184

Re: #2 FAQ - Mechanical Pump - Diffusion pump?

EDIT: In the original post I misread a unit, thus being off by 10e3. Added an example for clarification of my question. Of course I already do know that. :) That's something you can easily read in these FAQs and on Wikipedia. I try to gather as much information on my own as possible but I think I mi...
by Pascal Mueller
Sun Dec 23, 2018 3:17 pm
Forum: FAQs: Vacuum Technology
Topic: #2 FAQ - Mechanical Pump - Diffusion pump?
Replies: 41
Views: 30184

Re: #2 FAQ - Mechanical Pump - Diffusion pump?

You wrote that "You will need to get at least a 2-4 CFM, (cubic foot per minute)". I did read about several kidn of pumps and while checking ebay I did check out quit a few manuals. What I noticed is, that e.g. for a Turbovac 50 and similar the recommended forepump is a Trivac D2.5E, the CFM really ...
by Pascal Mueller
Sun Dec 23, 2018 12:45 pm
Forum: Vacuum Technology (& FAQs)
Topic: Chinese pump first run report.
Replies: 11
Views: 7302

Re: Chinese pump first run report.

@Dennis: You said that "generally ethyl alcohol - absolute is best", what do you mean by absolut? Do you mean the brand? Like absolute wodka? If so: Why not go to your local pharmacy and just buy pure ethanol? At least in my country you can get 98% ethanol over the counter. (You could even drink it ...