Hi Ive posted a picture of a 3D model I made of what could be the "ultimate" Van De Graaff. I spent far too much time on this, it was only supposed to be a...
Bob: This looks like a Van De Teslahurst generator! I'll take one 16 x 20 for my living room and a few wallet size for my friends :-) Great Job!! Dick...
hi I m a master student in Turkey. And I want to Van de Graaff accelerator.500 kV VDG and accelerator I need some information about VDG accelerator can you...
cool! but your Wimshurst part will limit voltage due to flashover. from what I know, a Wimshurst is a much more powerful "current generator" ,100,000 volts and...
cool! but your Wimshurst part will limit voltage due to flashover. from what I know, a Wimshurst is a much more powerful "current generator" ,100,000 volts and...
... at high speeds. anyone here used "barrel" shaped pulley's ? just like it sounds, the pulley is almost the opposite of what you'd think it should be,...
... that must be a monster! how big is the motor driving it? thanks. Cliff, ... mine, the upgoing side of the belt touches the downgoing side due to their...
... Hi Clif Yes I use barrel rollers as do most, if not all, of the other members here, but it dosent matter how barrelled the rollers are, the belt will just...
Cliff: The motor is a 1/5 hp universal AC/DC motor. I chose that over an AC motor because it is much smaller in size than an equivalent 1/5th hp AC motor and...
thats it? a 1/5 th horse motor, that's really good for 100 microamps/500,000 volts? i can only get about 25 microamps on my 28 cm Wimshust as it hisses loudly...
... Hi Cliff Is your Wimshurst a sectorless machine? If so, how do you measure the current on your Wimshurst? I connect the meter to the two terminals,...
Cliff: To elaborate just a bit and hopefully not to cloud the issue.....My motor is a 115 volts AC/DC 1/5 hp universal brush-type, nothing special. At full...
I think I should have built a VDG :) my understanding was that the Wimshust was more powerful in current, and I do get say 5 cm "lightning" at about a 3 Hz...
Cliff: My vdg does the same thing. When I ground the terminal with a ground wand the belt speed is screaming. When I remove the wand the belt slows down as...
Hi all: Just posted the latest pic of VDG #2. Open column works great and is better for the kids to observe the belt. The black dots on the belt makes the belt...
wholly bajesus! either your a midget, or that things HUGE :) ever get any leyden jars on something that big? i've been having problems with mine,there glass...
Cliff: I'm 5' 8" tall Re glass Leyden jars.....My only experience with jars/bottles & high voltage is using beer bottles for capacitors in a Tesla coil. The...
Hi, yes I could imagine them exploding , especially with a VDG's much higher voltage, I would look for good designs for use in a Wimshurst then put 5 of them...
Cliff: I think there would be a lot of problems charging one or even a string of jars off a big VDG. It would be some remarkable Leyden Jar that could...
you might be able to stack jars together in some "tower" form,i just uploaded a photo of a dual leyden jar, its 2 jars back to back, under "Cliff's junk" in...
Cliff: Thanks..will consult the picture. It just donned on me...caps is series subtract, caps in parallel add so the series solution to the HV problem begets...
Cliff: Looks like your dual unit is equivalent to 2 caps in series, C1 & C2 with a third cap C3 across the series pair. Resulting capacitance of the trio =...
Hi Dick, yes there's a "bit of" a third cap in there, if you put foil on the bottom of the jars, but then there's also a "double thickness" of glass there...
ps,i just uploaded a clearer diagram of a dual cap, under photo's , cliffs junk ... the ... leave ... or ... easy ... to ... dropped ... bottom, ... the ... & ...
I had a strange dream the other night. I made VDG, table top size, then some one came along and took it away from me, when I finally found him, he had taken...
Bob: Obsessed but NOT time to find a new hobby. Seriously, I have had many dreams about VDGs over the past several years. I often awoke during the wee hours...
Hi I am about to make a new belt for my VDG, Im going to try ripstop nylon impregnated with latex, im not sure of the tribolectric properties of latex but the...
"Just be careful and do not crash your disc storage drive for all will be lost." I wish my memory was that stable, its more like a 16k ram pac on the back of a...
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