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 #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
cavemen wrote ...
I am curious. What kind of things does EVR do besides selling those several electronic HV kits through the website?
We design and manufacturer solid state Tesla systems for commercial and educational groups. We also do a fair amount of consulting and engineering.
Most recently we completed a Tesla coil install for the Franklin Institute Science Museum in Philadelphia as a subcontractor for Resonance Research. We also were a contractor directly for the FI in providing a complete Tesla Coil / Interface System for their multimedia computer system. Basically, they had a disco dance floor (designed by a firm in the Netherlands) which when danced upon by a million little kids starts to generate some energy, which in turn activates the large overhanging Tesla coil (its upside down in a giant cage).
We have also done some custom onboard computer system designs for largescale amateur rocket designs.
Registered Member #2648
Joined: Sun Jan 24 2010, 12:45PM
Location: Australia
Posts: 291
Hello
I am a Telopea Park School student. I have been working on the LT3750 (see thread in HV board) and I've had almost everything go wrong as Mantis will know, wrong sized pads, burnt up resisotors, blown up mosfets everything that could go wrong seems to have happened! gaaaah DX. I want to use the LT346812 which is much simpler and easier to use (only 4 required components), problem is finding a suitable flyback transformer. 4starelectronics.com had a flyback designed for use with this but their asking price is $25 each! For a tiny 5.8mm × 5.8mm × 3mm flyback so I was wondering if you had a suitable flyback or if anyone knows where I can get one?
The required specs are: *Primary Inductance >5 uH *Primary Leakage Inductance 100 to 300 nH *Secondary: Primary Turns Ratio 1:8 to 1:12 *Secondary to Primary Isolation Voltage >500 V *Primary Saturation Current >1.6 A *Primary Winding Resistance <300 mOhms
Registered Member #2648
Joined: Sun Jan 24 2010, 12:45PM
Location: Australia
Posts: 291
Yes Steve I already know that Coilcraft makes transformers for the LT3750, I got my transformer for the LT3750 as a free sample from them. What I am looking for is a transformer for the LT346812. Wait a minute... looks like the flyback for the LT3750 is within the required stats, oh well then. I guess I'll get that as the flyback, It's a alot bigger and I've already order a sapmle this month... well I'll try it out and see
Registered Member #2677
Joined: Mon Feb 08 2010, 03:06AM
Location: Palo Alto, California, USA
Posts: 64
Hello I am in need of a few fiber optic components. In September I will be a freshman in high school and I have 31 posts so I meet the requirements. I do have a student ID card from this previous school year I could make a scan of or something if you want verification and I can give you my shipping address by email or PM. Anyways, I am in need of a receiver and two transmitters that can be used together. I need them for Steve Ward's "New Driver" (the one used in his DRSSTC-0.5) so I would prefer that the receiver be OPF2412T but if you don't have that I can use any one that has the same pinout and is appropriate for Steve's driver. For the transmitters as I said before, the only need that must be met is that they are compatible with the receiver. I will be using these parts to make a medium size DRSSTC I am in the process of designing. Thank you, UbuntuNinja
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
UbuntuNinja wrote ...
Hello I am in need of a few fiber optic components. In September I will be a freshman in high school and I have 31 posts so I meet the requirements. I do have a student ID card from this previous school year I could make a scan of or something if you want verification and I can give you my shipping address by email or PM. Anyways, I am in need of a receiver and two transmitters that can be used together. I need them for Steve Ward's "New Driver" (the one used in his DRSSTC-0.5) so I would prefer that the receiver be OPF2412T but if you don't have that I can use any one that has the same pinout and is appropriate for Steve's driver. For the transmitters as I said before, the only need that must be met is that they are compatible with the receiver. I will be using these parts to make a medium size DRSSTC I am in the process of designing. Thank you, UbuntuNinja
Hi,
Contact me directly through the email address on my website (see below). I have fiber optics that will meet your needs.
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.
Eastern Voltage Research - Student Sponsorship Program
as Mantis will know, wrong sized pads, burnt up resisotors, blown up mosfets everything that could go wrong seems to have happened! gaaaah DX. I want to use the LT346812 which is much simpler and easier to use (only 4 required components), problem is finding a suitable flyback transformer. 4starelectronics.com had a flyback designed for use with this but their asking price is $25 each! For a tiny 5.8mm × 5.8mm × 3mm flyback 
