Search found 16 matches

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: 1315

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: 4269

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: 4269

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: 8586

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: 3406

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: 3406

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...
by Cai Arcos
Mon Jun 24, 2019 9:26 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: T-T Fusion in a radioluminescence tube.
Replies: 9
Views: 3406

Re: T-T Fusion in a radioluminescence tube.

Something that bothers me greatly about the video is the high voltage system, since no metering is done and no data presented. Furthermore, If I remember correctly from the cross section chart of the T-T reaction, extremely high voltages would be needed. Those voltages are not present, I would think...
by Cai Arcos
Mon May 13, 2019 2:53 pm
Forum: Vacuum Technology (& FAQs)
Topic: Measuring Vaccum with electrical discharge
Replies: 8
Views: 8106

Re: Measuring Vaccum with electrical discharge

Books are not made like this anymore....
I bet a new book would provide a reference to some obscure paper containing this data without actually posting it and assuming the reader can access it...
Thanks for posting it!
by Cai Arcos
Fri May 10, 2019 8:17 pm
Forum: Vacuum Technology (& FAQs)
Topic: Measuring Vaccum with electrical discharge
Replies: 8
Views: 8106

Re: Measuring Vaccum with electrical discharge

Richard:
You are correct. I did it by impulse from other forums, sorry. I will not make the same mistake again.
by Cai Arcos
Fri May 10, 2019 10:03 am
Forum: Vacuum Technology (& FAQs)
Topic: Measuring Vaccum with electrical discharge
Replies: 8
Views: 8106

Re: Measuring Vaccum with electrical discharge

Cai Its the weekend here now and I left the book at work where the wonderful photocopier that copies to PDF is i'll try to do it on Monday for you Obviously, there is no rush whatsoever. Thank you very much! I have been searching info on this type of vacuum gauge for about a month with very little ...