Search found 245 matches

by Bob Reite
Thu Dec 12, 2019 4:47 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Precipitator HV Supply Hacking
Replies: 20
Views: 3346

Re: Precipitator HV Supply Hacking

Now to figure out the programming of the microcontroller.
by Bob Reite
Tue Dec 03, 2019 1:37 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Spellman Power Supplies
Replies: 7
Views: 660

Re: Spellman Power Supplies

I'll also add that if you are just going to throw money at it and order a brand new supply from Spellman, they do not stock that I know of, they build to order with a typical lead time of ten weeks. If you are good with high voltage electronics, you can probably do it in less time, although the lead...
by Bob Reite
Tue Dec 03, 2019 1:14 am
Forum: FAQs: Vacuum Technology
Topic: FAQ - Sealing a conflat flange and flanges in multiples
Replies: 10
Views: 351

Re: FAQ - Sealing a conflat flange and flanges in multiples

If you are using a convection gauge as I am for coarse vacuum, or any other type that is sensitive to changes in gas composition, you can use a can of "dust off" to spray each joint and watch for a change in the gauge reading. Tighten until there is no longer a change, then check other joints if the...
by Bob Reite
Tue Dec 03, 2019 1:08 am
Forum: Items wanted
Topic: CF275 Half Nipple Hardware
Replies: 9
Views: 272

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: 660

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: 9
Views: 715

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: 5
Views: 3210

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: 788

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: 275

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: 750

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

I Bob Reite want my editing privileges restored.