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 #396
Joined: Wed Apr 19 2006, 12:55AM
Location: Pittsburgh, PA
Posts: 176
Wavetuner wrote ...
Say, could a circuit like this be used to break down a energy capacitor discharge slightly wide set gap?
It would be much more involved than simply overvolting the gap but then if your capacitors were a relatively low voltage (ie. 400v electrolytics) then that would wouldn't be practical whereas this would. Then again the inductance of the coupling coil would severely limit the speed at which you could dump the caps, and electrolytics are slow as it is.
I know this topic sort of died but I'm really surprised that no one has made any sort of arc starter device on the forum (or at least any that I know about). Anyone have any ideas about a simpler way of making such a device? I've never gone through with this because I'm having trouble finding an NST for free/cheap and it seems that there must be an easier way.
I wonder if a Mazilli flyback driver would have enough power? I'm setting one up right now so we'll see. Some ferrite stuffed in the core of the main coupling coil would probably increase coupling and really help at lower frequencies. Maybe even a lot of primary turns driven by a 555 or TL494 at lower voltage?
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
There was someone on the old 4hv that used a flyback core with (I think) about 10 turns of 12awg wire on a ferrite flyback core in series with a stack of 12v sla gell cells. I am not sure what they were using to drive it, the mazzillii driver comes to mind, but I would assume the frequency was very high to allow a very high v/turns ratio in the core.
Registered Member #1534
Joined: Wed Jun 11 2008, 08:37PM
Location: Moscow
Posts: 4
Such device may be much more simple. I using for current limiting only capacitor on 2nF in primary coil's circut, driving simple with SCR.
Actually I use schematic like that for ignition of 2kJ xenon pulse lamp (I don't know why but parallel ignition not working with it). Also this is what used in tazer's shockers for better reaching target through clothes))
Registered Member #396
Joined: Wed Apr 19 2006, 12:55AM
Location: Pittsburgh, PA
Posts: 176
[RUS wrote ... ChaosSorcerer] Such device may be much more simple. I using for current limiting only capacitor on 2nF in primary coil's circut, driving simple with SCR.
Actually I use schematic like that for ignition of 2kJ xenon pulse lamp (I don't know why but parallel ignition not working with it). Also this is what used in tazer's shockers for better reaching target through clothes))
I'm really not sure what that means. I don't mean to offend you but you knowledge of English makes it difficult to understand. I'm not sure where the SCR comes in.
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.
High Voltage "Arc Starter"
![[RUS]ChaosSorcerer](/thumb.php?src=%7Be_IMAGE%7Dgeneric%2Fblank_avatar.jpg&w=100&h=0)