Search found 265 matches

by Bob Reite
Tue Dec 03, 2019 1:08 am
Forum: Items wanted
Topic: CF275 Half Nipple Hardware
Replies: 9
Views: 930

Re: CF275 Half Nipple Hardware

Stainless steel hardware that you can find at a big box store is fine for use with vacuum flanges, with one exception. If one of your flanges has tapped holes, rather than through holes on the mating pieces where you use a nut on the other side, spend the money for silver plated bolts, or at least a...
by Bob Reite
Thu Nov 28, 2019 11:02 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Spellman Power Supplies
Replies: 7
Views: 1367

Re: Spellman Power Supplies

I personally would opt for the 50 KV 12 mA supply. Yes, if you are ordering it brand new, expect a quote in the USD thousands.
by Bob Reite
Sun Nov 24, 2019 10:20 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor construction questions
Replies: 27
Views: 3427

Re: Deuterium electrolysis question

That operation is correct. The chamber with the three tubes will not displace oil unless the output from the PEM cell is greater than what is being dawn off through the needle valve.
by Bob Reite
Thu Nov 21, 2019 11:19 pm
Forum: Items For Sale
Topic: Luke Harrill's Trading Post
Replies: 6
Views: 4788

Re: Luke Harrill's Trading Post

Item # 1.6 would be fine for a demo fusor.
by Bob Reite
Thu Nov 21, 2019 11:18 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Demo Fusor Progress
Replies: 10
Views: 1674

Re: Demo Fusor Progress

You can still buy the "old school" 60 Hz iron core oil burner transformers from a good HVAC supplier, such as SupplyHouse.com It will set you back about fifty dollars. It has to be a big black metal cube with rounded corners. The new inverter based ones are smaller, the cover is plastic and and has ...
by Bob Reite
Mon Nov 11, 2019 5:59 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Help to improve fusor
Replies: 5
Views: 739

Re: Help to improve fusor

I'm able to run my system at 50KV without resorting to oil. Corona needs to be controlled. Get a 1" dia brass ball (Aluminum would be OK) and put that on the feedthrough terminal. Do dress the HV wire away from anything else. I would not trust the wire on those Chinese power supplies to be good for ...
by Bob Reite
Sun Nov 10, 2019 3:35 am
Forum: Announcements and Site Administration Topics
Topic: I want to help fix fusor.net!! (join up listing)
Replies: 19
Views: 1946

Re: I want to help fix fusor.net!! (join up listing)

I Bob Reite want my editing privileges restored.
by Bob Reite
Thu Nov 07, 2019 9:21 pm
Forum: Announcements and Site Administration Topics
Topic: Not good news about the lost links on the site
Replies: 14
Views: 1829

Re: Not good news about the lost links on the site

More thoughts: I'd really like to get my hands on a mysqldump of the site database, plus a .tar or .tgz file of the forum directory and mirror it on one of my servers.
by Bob Reite
Thu Nov 07, 2019 9:19 pm
Forum: Announcements and Site Administration Topics
Topic: Not good news about the lost links on the site
Replies: 14
Views: 1829

Re: Not good news about the lost links on the site

That hashed filename is of the form XX_[UUID}. I think just a random UUID is generated, not a "hash". But in any case the XX (which can actually be one, two or even three digits if we have that many users) before the underline character is the same as the poster_id in the database. the phpbb_attachm...
by Bob Reite
Thu Nov 07, 2019 8:47 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Latest Fusion Run / BTI Bubble Results
Replies: 4
Views: 862

Re: Latest Fusion Run / BTI Bubble Results

We are fairly certain that our fusors are isotropic sources. Therefore if it does become necessary to move the detector, one can use the inverse square law to calculate what to expect at the new distance. But it is important not to change the voltage to the detector or any other calibration involvin...