Search found 2329 matches

by Carl Willis
Wed Aug 28, 2013 12:11 am
Forum: Vacuum Technology (& FAQs)
Topic: Where to find cheap-ish turbos?
Replies: 12
Views: 5230

Re: Where to find cheap-ish turbos?

Block-quoting and nested block-quoting are new to members who got accustomed to this forum over the decade or so before conversion from W-Agora to phpBB just this summer. It's clear there are divergent opinions on the subject. My own feeling is that nothing in this thread has crossed an obvious line...
by Carl Willis
Tue Aug 27, 2013 3:50 pm
Forum: Vacuum Technology (& FAQs)
Topic: Best way to go oil-free?
Replies: 2
Views: 1048

Re: Best way to go oil-free?

1. Is this information true? I don't want to go buying equipment based off of an off-statement made by a complete stranger on the internet! Keith, hate to break it to you, but you're still soliciting free advice from "complete strangers on the Internet". Hobbyists are generally happy doing that, be...
by Carl Willis
Mon Aug 26, 2013 7:44 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: -80kV, 40A switching power supply with resonant transformers
Replies: 6
Views: 3271

Re: -80kV, 40A switching power supply with resonant transfor

Hi Andrew,

Nice work, and and it looks like a fun project as well. I think your paper has a lot of suggestions and calculations that are relevant to high-frequency fusor supplies, and I'll definitely mark it as a top-flight reference for future projects.

-Carl
by Carl Willis
Sun Aug 18, 2013 3:35 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: The gases or gas used
Replies: 3
Views: 2554

Re: The gases or gas used

Derek, you'll need to bring your username into compliance with the rules. You will also need to post an introduction in accordance with the rules. After completing the registration process, please take a moment to familiarize yourself with the organization of the forum; questions about fusors don't ...
by Carl Willis
Mon Aug 12, 2013 3:44 am
Forum: FAQs: High Voltage
Topic: FAQ: Neon transformer wiring diagram - demo fusor
Replies: 21
Views: 28657

Re: FAQ: Neon transformer wiring diagram - demo fusor

Scott, I can understand your frustration, but let me be absolutely clear about one thing: Fusors and other line-powered high voltage gear are emphatically not entry-level projects. You are going to need help-- hands-on, experienced, adult help --to hook up that neon transformer safely. Our forum is ...
by Carl Willis
Mon Aug 05, 2013 5:25 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Neon Sign Transformer
Replies: 1
Views: 1384

Re: Neon Sign Transformer

To repeat once again what gets said on this forum at least every week: -NSTs are suitable for "demo fusors" but not for neutron producing fusors. -The connections and general use of NSTs are discussed in FAQ posts by Richard. Hundreds of examples of NST use may be found by searching our 15 years of ...
by Carl Willis
Sun Aug 04, 2013 5:55 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Capillary tubing
Replies: 7
Views: 3840

Re: Capillary tubing

Capillary tubing is distinct from hypodermic needle tubing. For one thing, it is available in the smaller bore sizes that are required for decent flow control, e.g. 0.005" ID (or less, if you can find it). Conductivity is related to the fourth power of the diameter by Poiseuille's Law. Even a little...
by Carl Willis
Sun Aug 04, 2013 12:17 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Building a Fusor at 12 Years Old
Replies: 18
Views: 6340

Re: Building a Fusor at 12 Years Old

Scott, Their own description makes clear, in two places, that the power supply CANNOT source 5 mA at the same time it is delivering 25 kV. First of all, it is driven with a 12V / 1A power supply. Multiply twelve by one. That's how much power is available to the HV supply. Conservation of energy dict...
by Carl Willis
Sat Aug 03, 2013 1:34 pm
Forum: Images du Jour
Topic: Archived - Plasma in Thailand~
Replies: 7
Views: 2633

Re: Plasma in Thailand~

Excellent effort, Jack.

Thanks for sharing the valuable details about who helped you and what kind of budget you're working with. Your equipment is first-rate and it shouldn't be hard to take this to the "neutron club".

-Carl
by Carl Willis
Sat Aug 03, 2013 5:23 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Building a Fusor at 12 Years Old
Replies: 18
Views: 6340

Re: Building a Fusor at 12 Years Old

Jack, Can you clarify your comment about the failure? I'm not clear from reading if you mean the experiment with the fusor failed, somehow, or if the power supply failed (broke down). The power supply in question is not one that meets the frequently-discussed criteria for even "demo" fusors, as its ...