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 #846
Joined: Tue Jun 19 2007, 08:04PM
Location:
Posts: 40
Hi all,
I’m circling back around to take another shot at reducing the time it takes to charge my 1kv YAG laser flash lamp capacitor. This time I have a MOT in front of me rather then a 6.5kv bug zapper transformer which current limiting makes less desirable.
Instead of trying to use the zapper transformer with it throttled back to 1kv and limited current the MOT cut back to 1kv without current limiting has to be better in reducing cap charge time.
With respect to the MOT what precautions should I take when mounting it since the frame is one side of the secondary high side? Currently I have the whole system attached to pieces of clear Lexan with angle aluminum at the corners forming a rectangular box. This box is then fit into a 4 inch wide green ammo can. If the transformer frame is a terminal of the secondary should I take steps to keep it isolated from the metal can or would it matter as long as the other terminal is kept away from the can? If I mount it like I did the zapper transformer the bolts holding the transformer frame would be near the can. However it was originally bolted to the oven chases which is touched.
If it warrants extra attention, what additional steps should I take to isolate/insulate the MOT as it would be mounted in the can? I don’t want to split hairs but I also don’t want to overlook something that could be of life saving importantance.
Registered Member #1208
Joined: Thu Jan 03 2008, 05:30PM
Location: Chesterland, OH
Posts: 154
i think you could not worry about insulating the core from the case if you earthed the case, maybe using the safety ground of the power outlet you plug it into. as for current limiting, think 100 watt lightbulbs.
Registered Member #195
Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
if you want only 1000v you could find a transformer that does 120 to 480 and add a fullwave dublier and that should put you on the mark. the size of the transformer and caps will determin how fast you can recarge. ebay is a good source for step up transformers
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.
Input requested concerning microwave oven transformer to charge cap.
