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 #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
Hello everyone! Does anyone have any good information (instructions) on how to make an inexpensive high voltage bridge rectifier? I assume that I will be using many-many small diodes... My biggest concern was arc-over between the diodes.
Registered Member #2628
Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627
I typically use microwave oven diodes and solder the ends then put clear silicon glue on em, but ive seriesed 1n4007's to whatever voltage I need, then I put silicon glue on all the connections, then stick it inside 1 inch diameter PVC pipe and fill it with mineral oil
ive tried this method for up to 50kV with no issues also, another method would be the one on the 4HV wiki:
which is really the same idea, but different construction
Registered Member #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
The rectifier is for the output of a mazilli zvs flyback driver. I am using a vary old flyback without the built in diodes. I am hoping to use the driver to power a small tesla coil but need to convert to DC before I can connect the capacitor bank.
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Patrick wrote ...
SF1600 is the diode he uses but its hard to find now, and i wish i knew of a similar replacment.
Patrick,
Firstly, they aren't hard to find. Newark Electronics ALWAYS has them in stock and they are pretty cheap too. You can get a bag of 1000 pieces for $189.00.
Secondly, I offered you a full bag of 500 NEW EDAL MT4M5 diodes (1kV, 3A, 150ns) about a month ago for FREE ($6.00 for shipping) but you never took me up on the offer. Those diodes have since been given to someone else. Not sure why you didn't want them after I offered them to you.
Registered Member #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
I like the SF1600's better then the 1N4007's, but the SF1600's will cost me $30 vs $5 for the 1N4007's. I plan to use them to build a bridge from the HV output of two flybacks to power a small coil.
Is there an advantage in in this case for me to use the SF1600's?
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
eastern voltage, i got my pay pal thingy working now, and sent you the money last night.
also, yeah i think uf4007's would be fast enough for iggy type freqs instead of the more costly sf1600's for you. the sf1600's are good for flyback freqs and up, 75ns trr if i recall.
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 rectifier
