Search found 1234 matches

by John Futter
Sun Jul 05, 2020 2:29 am
Forum: FAQs: Fusion and Fusor Theory
Topic: Fusion energy from a D-D reaction + A bit of Fusion Physics
Replies: 6
Views: 802

Re: Fusion energy from a D-D reaction + A bit of Fusion Physics

Erich
one does not add frivolous replies to faqs
only corrections or missed information posts are wanted

Richard you know what to do!!
by John Futter
Sun Jun 28, 2020 7:10 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Home Built Metering Panel
Replies: 10
Views: 6013

Re: Home Built Metering Panel

Ed
well done
Although I would have mounted the HV dropping resistor on a bit of acrylic not plywood
At 10kV you might get away with it but not at 20kV
by John Futter
Tue Jun 23, 2020 6:52 pm
Forum: Vacuum Technology (& FAQs)
Topic: Turbo repair - The Nightmare Begins
Replies: 5
Views: 391

Re: Turbo repair - The Nightmare Begins

Richard
Send me a list of the ics you need
I have quite an extensive pile of logic and analog leaded ics
by John Futter
Mon Jun 22, 2020 6:56 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Transformer Input Meanings
Replies: 6
Views: 449

Re: Transformer Input Meanings

John Should also do as the rules state
This is not the place for your first post
by John Futter
Thu Jun 18, 2020 9:00 am
Forum: Images du Jour
Topic: Research facility construction
Replies: 47
Views: 3555

Re: Research facility construction

Dennis
I do not want to hear you say
"We are not in Kansas now Toto"

maybe a bolt or two to stop it going to Oz
by John Futter
Thu Jun 11, 2020 5:25 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Portable Neutron Detector Test (CT007-T)
Replies: 9
Views: 472

Re: New Portable Neutron Detector Test (CT007-T)

all of this quite interesting. there are others doing very similar exercises We at work have been doing some exercising of another almost identical system using our accelerator to produce the neutrons and alphas to check neutron efficiency and alpha deafness The client had already done the betas and...
by John Futter
Tue Jun 09, 2020 7:07 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Xray transformer mods
Replies: 7
Views: 809

Re: Xray transformer mods

usually one winding is for the filament in the x-ray tube.
one of your low resistance windings could be for that
as Riochard has said only crack the variac up a volt or two max
by John Futter
Tue Jun 02, 2020 6:55 pm
Forum: Images du Jour
Topic: Restoration pfeiffer duo 004
Replies: 15
Views: 980

Re: Restoration pfeiffer duo 004

Iwouldn't
its a fuse in case of a rotor blade breaking.
at a pinch a tough plastic like acetal could be used
by John Futter
Tue Jun 02, 2020 6:31 am
Forum: Images du Jour
Topic: Restoration pfeiffer duo 004
Replies: 15
Views: 980

Re: Restoration pfeiffer duo 004

these discs are usually made from Tufnol tm cloth reinforced phenolic resin as used in many switchboards etc. G10 fibreglass is not a good substitute due to the glass fibres being very hard and they will damage internal surfaces if they shed while the phenolic cloth basically only polishes intertnal...