Search found 1324 matches

by Dennis P Brown
Mon May 11, 2020 9:57 pm
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 8899

Re: Coronavirus pandemic

The lock down is essential if we are not going to both suffer far greater death rates and crush our emmergency hospital systems. That said, as Richard pointed out, there are also other issues - from unable to pay rent to job losses to pyschological issues that the lock down also creates. Even if thi...
by Dennis P Brown
Mon May 11, 2020 9:19 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Proposal of a new type of colliding beam fusion reactor which electrical gain is superior to 1
Replies: 7
Views: 955

Re: Proposal of a new type of colliding beam fusion reactor which electrical gain is superior to 1

Skimmed the paper; first off, you obviously spent a great deal of time on this and over all, tried to be thorough - I'd say you did a good job and should continue your invesigations via paper research. My primary (through, not only) issue is the basic design: The figure eight plasma containment conf...
by Dennis P Brown
Sun May 10, 2020 11:06 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Xray high voltage multiplier
Replies: 17
Views: 906

Re: Xray high voltage multiplier

If you search the recent work of Nathan Marshall he used a ZVS (avialable online cheaply) to create a high frequency driver for his system. What he did would work for your multiplier very well.
by Dennis P Brown
Sun May 10, 2020 10:59 am
Forum: Images du Jour
Topic: Neutron Club Application - Nathan Marshall
Replies: 7
Views: 447

Re: Neutron Club Application - Nathan Marshall

Nathan, congratulations and welcome to the neutron club! Your work and especially efforts prove you are both a serious and excellent experimenter. You not only made your own deterium gas but your own (and impressive!) fusor power supply. You also helped many future fusor people with your power suppl...
by Dennis P Brown
Fri May 08, 2020 8:54 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Xray high voltage multiplier
Replies: 17
Views: 906

Re: Xray high voltage multiplier

Hello and learning by doing is ok for circuits and voltages that aren't lethal; unlike fusors. Can't say if yours is in that class but the last way one wants to prove that is via getting hit. As such, I'd suggest (as others here have) apply a very low voltage - i.e. use a variac to control input vol...
by Dennis P Brown
Fri May 08, 2020 10:55 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Xray high voltage multiplier
Replies: 17
Views: 906

Re: Xray high voltage multiplier

I'd suggest you disconnect that x-ray tube before applying power; best to be safe than get a dangerous exposure. Also, be careful - caps charged to HV can deliver a dangerous shock. Small caps like that simply won't provide anywhere enough power to drive a fusor at 50 Hz. John is guiding you to this...
by Dennis P Brown
Fri May 08, 2020 10:00 am
Forum: Images du Jour
Topic: Nathan Marshall - Fusor Progress
Replies: 41
Views: 3448

Re: Nathan Marshall - Fusor Progress

As for hearing the leak through a failed regulator; yes, you should have. It appears the tank emptied before that, which can only happen if the tank's main valve isn't fully closed or its 'pressure relief' valve failed at some point (my lecture bottle has one of those relief valves - don't know if a...
by Dennis P Brown
Fri May 08, 2020 12:08 am
Forum: Images du Jour
Topic: Nathan Marshall - Fusor Progress
Replies: 41
Views: 3448

Re: Nathan Marshall - Fusor Progress

Sorry to hear; regulators aren't something that last - I've had some fail and a tank empties. But unless your primary valve (independent of the regulator) wasn't fully closed, the tank should have remained filled. Deuterium can't really diffuse through the lecture bottle (I've had one for over 6 yea...
by Dennis P Brown
Wed May 06, 2020 12:49 am
Forum: FAQs: High Voltage
Topic: FAQ - Analog metering of High voltage supplies.
Replies: 4
Views: 290

Re: FAQ - Analog metering of High voltage supplies.

A lot of good info and ideas here. For someone not very experienced with electronics, the last diagram has a neon light (if memory serves, these turn on at about 70 volts?) But what voltage diodes would be appropriate in that circuit? I have a 45 kV probe style meter (it can read up to 55 kV.) I hav...
by Dennis P Brown
Wed May 06, 2020 12:26 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor V construction - the process long running
Replies: 44
Views: 5607

Re: Fusor V construction - the process long running

So very sorry to hear how extensive the damage was and possibly via cross talk along grounding wires?! While I have used seperate grounds (differnt wall outlet circuits rather than a star) for my fusor vs. my detectors, never supected that a star system could kill a turbo controller. When I get the ...