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 #61415
Joined: Sun Jan 08 2017, 11:50PM
Location:
Posts: 31
Actually, I am using a SLOT TEN-5-09. Some other feedback I got was that it might just be out of range. It does make an ever so slight adjustment if I zoom in very close, but it doesn't really do anything to reduce the spikes. I have some SLOT TEN-5-08 and SLOT TEN-5-10 on order to see if they have any better effect.
I am using 5.1 ohm gate resistors along with 1N5819 diodes.
Registered Member #61415
Joined: Sun Jan 08 2017, 11:50PM
Location:
Posts: 31
Thanks for the feedback and advice! I should have the other inductors this Thursday, so hopefully they will solve the issue :)
If I can get 2M+ streamers I will be very happy! I modeled this after LoneOceans DRSSTC3. I have built a number of classic spark gap coils but this is my first solid state coil, well, aside from a couple TinyTesla kits I built. Admittedly, there are many things that I just don't know if I am making a n00b mistake or having a real issue. I truly appreciate the help!
Oh, as an aside, I did notice that the ringing is minimal/nearly gone, as the current reaches maximum. Seems to be in line with LoneOceans Phase Lead tuning write-up, so maybe it is ok? I bet it could be a little better, but maybe not as bad as I was originally thinking...
Registered Member #61415
Joined: Sun Jan 08 2017, 11:50PM
Location:
Posts: 31
Here's the shot from LoneOcean's write-up that I am comparing to. At the beginning of the cycle, where current is just starting to build, the spikes are huge, but as current reaches maximum they are pretty much gone. Looks similar in my scope shot, no?
Registered Member #61400
Joined: Sun Jan 01 2017, 01:01PM
Location:
Posts: 33
Phil helped me a lot with midi interrupter, I also say big thanks to him!
Yesterday I finally upgraded my coil to UD+, so far looks nice but I still didn't test it Take a look at bridge output I scoped today, voltage was around 110V with 3 startup cycles
There is some ringing but it looks ok, I don't have any other inductors to try, gate resistance is 4.7 ohm which seems to work best
Registered Member #61415
Joined: Sun Jan 08 2017, 11:50PM
Location:
Posts: 31
You're probably right regarding my output, just my wishful thinking lol...
Forgive my inexperience but how are you getting so many pulses, is that from the duty cycle of the interrupter? Mine stops after 6 or so cycles but you see more than double. I am not hitting OCD. I am using the SD Interrupter from OneTesla. Perhaps I can just increase the on_time in the code and reflash it?
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.
slash128 first DRSSTC build
