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 #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
Inspired by a trip to the surplus store they were selling 100kv tazers and i wanted one so bad but they were far to expensive to buy. i decided to make my own so i came up with this circut using a homemade Inverter transformer connected to a 2 stage CW multiplier that charges a cap that discharges into a 900v sidac bank then into a pulse transformer that steps the voltage up to around 125kv. Please post any corrections or improvements that should be made with the circut.
Registered Member #14
Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
How is supposed the oscillator to work without a feedback winding? Also why ground the secondary side? It isn't necessary at all, and it will prevent shocking you wia pushbutton switch
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
ok i will not ground the bottom of the secondary and as far as the feedback winding i used the top left one so i dident know that a feedback winding is needed.
edit: this is the pulse transformer i am planning to use
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
funny you should link to those, I actually bought those same transformers from that guy awhile back. I didnt push any real powerful pulses through them yet, tho. All I did was charge a 2.2uf cap to 320V with a camera inverter, then discharge it thru the primary via SCR.
It gave a bright, inch-long spark that i didnt touch, but looked painful. It was only semi-auto since i didnt have sidacs for firing, just SCRs. But it could fire as fast i I pushed the button, probably around 7 times per second.
You've just inspired me, maybe ill try some more stuff with them. BTW I believe they are from those electronic gas grill igniters.
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
i couls completely change the design concept and downsize a camera circut like and put a 2.2uf cap with a 300v sidac discharging into the pulse transformer because a 1" spark is all i really need because im not trying to make something to actually defend myself but just to have around and if it is painful so i can shock myself at 2am just kidding but anyway that may work. I could also parallell a 300v scr and a 80v scr to make it trigger at 380v giving me a little more volts.
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.