Search found 20 matches

by Cai Arcos
Sat Dec 14, 2019 7:47 pm
Forum: FAQs: Vacuum Technology
Topic: FAQ - Paschen, gas, vacuum, electrostatics, break down, etc., etc.
Replies: 6
Views: 79

Re: FAQ - Paschen, gas, vacuum, electrostatics, break down, etc., etc.

Richard: What an interesting device indeed! I have a little fascination with the measurement of small currents using vacuum tubes, and because of that have read a lot of papers regarding the so called "electrometer tubes", as well as others that discussed the use of common receiver tubes like the Ty...
by Cai Arcos
Wed Nov 27, 2019 7:34 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Columbus-I Pinch Tube Build
Replies: 49
Views: 20986

Re: Columbus-I Pinch Tube Build

I had Facebook completely forgotten (had no picture even).
Just searched the group you've mentioned and it looks amazing!
I'm gonna tidy up a little bit my profile and join.

Thanks for the recommendation!
by Cai Arcos
Wed Nov 27, 2019 6:22 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Columbus-I Pinch Tube Build
Replies: 49
Views: 20986

Re: Columbus-I Pinch Tube Build

Mark: Being more theoretically inclined, I am very interested in the library you have mentioned. If I gave you my e-mail, could you be able to send me your references? I am also very interested in your investigations regarding capacitance, but mostly because in my case they would have to be home mad...
by Cai Arcos
Wed Nov 27, 2019 1:48 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Columbus-I Pinch Tube Build
Replies: 49
Views: 20986

Re: Columbus-I Pinch Tube Build

Mark: The system you've built is extremely impressive. I want to express my gratefulness for posting such a detailed account online. If time and money allows me to, I might try to start something similar in the summer vacations of university. If you would like to read more about pinches and fusion a...
by Cai Arcos
Fri Aug 09, 2019 9:11 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Reforming capacitors in consumer electronics?
Replies: 5
Views: 1905

Re: Reforming capacitors in consumer electronics?

Rich: I'm not expert in pretty much anything, but why take the risk? I have been watching this channel for a while now (https://www.youtube.com/user/MrCarlsonsLab), which seems quite an expert on the matter, and he always seems to straight out discard the possibility of reforming caps, preferring re...
by Cai Arcos
Mon Jul 01, 2019 6:33 pm
Forum: FAQs: High Voltage
Topic: FAQ - Build a high voltage "bias" meter for free!
Replies: 6
Views: 5136

Re: FAQ - Build a high voltage "bias" meter for free!

Hi: I have made one final refinement to the bias meter. The resistor adding and substracting procedure can be a bit tedious, and the accuracy obtained in the higher ranges is always a bit lackluster. Furthermore, if you are like me (your local electronics supplier is not very well stocked and don't ...
by Cai Arcos
Sun Jun 30, 2019 11:35 am
Forum: FAQs: High Voltage
Topic: FAQ - Build a high voltage "bias" meter for free!
Replies: 6
Views: 5136

Re: FAQ - Build a high voltage "bias" meter for free!

Hi: The low-Z high voltage source proposed by Richard for calibration can be dangerous, specially due to the capacitors needed to reduce ripple. I have devised a method for calibration that doesn't need such a supply. First, connect a standard (10 or 100 mega ohm input impedance) multimeter to the o...
by Cai Arcos
Thu Jun 27, 2019 6:49 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: New Fusor Project
Replies: 20
Views: 9957

Re: New Fusor Project

Following from my own personal experience regarding those cheapos, I would second what Richard said. Noise is quite an important issue, specially in your setup where everything is packed close together. Sparking between the contacts of the rotary switch might also be a problem (as it happened to me)...
by Cai Arcos
Tue Jun 25, 2019 8:18 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: T-T Fusion in a radioluminescence tube.
Replies: 9
Views: 4135

Re: T-T Fusion in a radioluminescence tube.

I will carefully read those documents and also inform myself of any other restrictions present in Spain. It had never crossed my mind the (i)legality of my actions, but not knowing about the law does not excuse one for breaking it.
by Cai Arcos
Tue Jun 25, 2019 12:37 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: T-T Fusion in a radioluminescence tube.
Replies: 9
Views: 4135

Re: T-T Fusion in a radioluminescence tube.

John /Richard: Could you point me somewhere I could consult those rules? I was completely oblivious of it's existence, and the Americium example you provide is quite shocking, mainly because I see it commonly on the Internet in very popular/good reputation sources (for example, this spanish web page...