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 #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
It was basically this: schematic but i used a 1nf capacitor and 4 6.8nf caps all in series for the timing capacitor and 50 volts for the input. For the pot and resistor between pin 7 and pin 2 is a 2.2kohm resistor. My secondary is 4 inch by 16 inch and 28gauge wire. Some 1000 turns. The primary is at around 6-10 turns now.
There is a tiny bit of breakout and the spark is a little more than half an inch. Still no tuning, and soon i will run on 120 volts half wave and the full wave rectified. This would be a great sstc for a starter.
Registered Member #952
Joined: Mon Aug 13 2007, 11:07AM
Location: Finland
Posts: 388
Any pics or video?
Fixed frequency oscillators of course aren't the best bet for a solid state tesla coil but at least they're stable and reliable. PLL is a good combination of a fixed frequency oscillator and a self-resonant driver.
Oh and you might want to clean the top post up a bit. Someone may not be able to understand it completely.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Can someone explain hat pll is? I know that it means phased locked loop but i do not know anything about it . Oh and by the way i am only good at fixed frequency oscillators
I am not sure of the frequency though, i don't have a scope.
Registered Member #989
Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
PLL its generally a oscilator with feedback on it. You set some frequency to operate and if he gets other oscilation from feedback, he locks that interal oscilation to that its coming on that feedback. The detail is, When it got the fres of the coil it doesnt change so easy, and it makes better to stay in that frequency.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Oh! Sweetage!
UPDATE: well a frew minutes ago i put it back together but now i am using 28 turns on a 2.5 inch plastic cup that goes inside of the 4 inch primary. I am using 50 volts(drops to 40) at an amp and the mosfet is cool enough to touch. I use a 1nf capacitor for class e(i guess that is a 'shunt' capacitor?) and a series string of 4 6800pf capacitors for a total of 1.8nf. Everything stays cold now so i am quite happy. The sparks are VERY hot(turns the 24-28 gauge tin wire molten, and burn the stuff outta my finger) and ground arcs are up to about 1inch. I will post a video tomorrow.
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.
I made a solid state tesla coil.
. Oh and by the way i am only good at fixed frequency oscillators 
