If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #3922
Joined: Thu Jun 02 2011, 06:24AM
Location:
Posts: 23
ok so this video shows where i'm at on it, and it works great :D
I have 3 microwave caps in parallel from the mot to the ladder off the side thats connected to the housing. (one of witch is from '73 and is the huge one, about the same rating though)
i used some old ceramic insulators for holding the forks, i'll get matching ones soon
the ladder is steel welding rod (oxy-acet)
*it will be put in a nice plexi-glass tube "home" when experimenting has completed* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
let me know that you think i could so to make it (preform) better!
Registered Member #3781
Joined: Sat Mar 26 2011, 02:25AM
Location:
Posts: 701
I found that if you use the straight metal that's meant for welding instead of wire then your arc will travel up the ladder at the same speed and it won't get caught. The antenna from remote control's or tv's would also probably work well, plus they collapse
Registered Member #3922
Joined: Thu Jun 02 2011, 06:24AM
Location:
Posts: 23
@camp badger: the rods are a little over 3/16 inch. do you use something bigger? what do you mean metal thats meant for welding, do you mean round stock? like a metal dowel?
@magnet: it's an mot, to auto ignite it would have to be about 2mm apart, then it wouldnt rise. i would need something to step up the volts a little... i would make a gabriels electrode but i dont think that would work with a jump of this far (and i don't have any resistors @ the moment
Registered Member #2893
Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
Could do what they do in some welders to start an arc; use an air core transformer to couple 10kV or so to the 2200V from the MOT. Very low current, but enough for a spark.
Registered Member #3781
Joined: Sat Mar 26 2011, 02:25AM
Location:
Posts: 701
PresentTeck wrote ...
@camp badger: the rods are a little over 3/16 inch. do you use something bigger? what do you mean metal thats meant for welding, do you mean round stock? like a metal dowel?
Sorry, I don't know the exact name, I used this stuff:
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
My Mot jacobs ladder, improvments?
