** Add your Tesla coil here ** / Tesla Coils / Forums

Forums

4hv.org :: Forums :: Tesla Coils

« Previous topic | Next topic »

** Add your Tesla coil here **

first previous 31 32 33 34 next last

Move Thread

LAN_403

raff

Tue Feb 09 2010, 01:52PM

Registered Member #2315 Joined: Tue Aug 25 2009, 02:35AM
Location: Leyte, PH
Posts: 161

my take on SSTC..

project dated NOVEMBER 2009

shown bellow, the driver board.. SSTC running on secondary feedback using CT

sparks... 12" length

and the video:

more info can be found HERE:

first sstc

the rebuild

PYLEMET-mk2

Tue Mar 16 2010, 07:30PM

Registered Member #1513 Joined: Sat May 31 2008, 12:08PM
Location: Russia Klin
Posts: 48

my first and second SGTC
mini, 35cm sparks
536696 196

video:

medium, 75cm sparks
277798

video:

lpfthings

Wed Mar 24 2010, 08:18AM

Registered Member #1361 Joined: Thu Feb 28 2008, 10:57AM
Location: Cairns, Australia
Posts: 305

Guess I can't really claim this as my own work, as most of it was a kit from eBay, but thought I would post it in this thread just incase anyone is looking to buy one, and wants to know what it's like

Uses 2 FGL60N100BNTD IGBT's half bridge

Bridge caps are 250V @ 1800uF each * 2

Tank cap is 3 942C's in parallel

Input, ~40W (12VAC @ 3.3A)

Spark output: Big enough! With the right tuning, about 45cm is achievable, but I haven't tuned it completely yet.

Has 2 adjustable modes, Normal mode is a single bang, about 1BPS, and Burst mode is a couple of bangs per second, rest, couple more bangs etc.

Really bad video snap:

I love this coil, despite accidentally blowing the IGBT's by shorting the bridge caps into their gates. Can run for hours and hours without overheating :)

It's an extremely nice kit, and a great way to learn about tesla coils if you are new to them :) Just watch out for those pesky capacitors!

robertomegavolt

Fri Apr 09 2010, 08:52PM

Registered Member #1909 Joined: Sun Jan 04 2009, 04:42PM
Location:
Posts: 4

Hello my name is Roberto I'm writing from Italy will post my first Tesla Coil
Technical Data
Two Potential tranformer 24 kV 250 mA 50 Hz, in parallel
Ten Mxwell capacitor 30 nF 35 kV seie parallel for a total of 150 nF
70 Kv.
Secondary coil diameter 250 x 1000 2500
resonant frequency, 86.5 Kz Spark Gap rotary synchronous 100 BPS 3000 RPM
Maximum spark lenght 2.5 meter
Avideo clip is available here :

robertomegavolt

Thu Apr 22 2010, 11:19PM

Registered Member #1909 Joined: Sun Jan 04 2009, 04:42PM
Location:
Posts: 4

Two Potential tranformer 24 kV 250 mA 50 Hz, in parallel

GreenLab

Fri Jul 30 2010, 12:22AM

Registered Member #3047 Joined: Thu Jul 29 2010, 10:56PM
Location: Germany
Posts: 12

hello,
my name is GreenLab from germany and that is my first post.
excuses, but my english is very bad!
i will show my newest tesla coil M-3 :)
technical data:
typ= SGTC
HV source= neon sign transformer 6 kv/ 35 ma (120 ma)
MMC = 25 nf
spark lenght= 38 inch (1 meter)

Video

GreenLab

Sat Jul 31 2010, 09:51PM

Registered Member #3047 Joined: Thu Jul 29 2010, 10:56PM
Location: Germany
Posts: 12

and my first coil (build with a friend)

typ= SGTC
hv source= 8kv 50 ma (150 ma) nst
capacitor= 57 nf
compressed air spark gap
spark lenght= 51" (1300 mm)

VideoÂ´s

genie109

Sun Aug 01 2010, 01:10AM

Registered Member #3019 Joined: Tue Jul 20 2010, 10:49PM
Location: In the near of Trier
Posts: 5

Hello

First Sorry for my bad English, im from Germany. I will show my first cail its a SGTC the Secondary is on a 11cm Tube with 1333 turns of 0,32mm CuL. As highvoltage source i am using a NST with 5KV and 85mA that loads a capacitator with 55nF wich i made of Wima FKP 1 capacitators. The Spark Gap is made put of Copper tubes.

The pictures are old now the spark lenght is about 80cm long that you can see in the Movies.

Pictures:

The coil

Spark

A Spark that goes in a miniature Eifel tower

Movies:

Greets Marco

MadMrMike

Sun Aug 01 2010, 05:56PM

Registered Member #3054 Joined: Sun Aug 01 2010, 05:25PM
Location:
Posts: 13

Hi, everyone!

This is my first post. I hope it's well received.

I figured I'd start off by posting some pictures of my baby coil. I built it a few years ago, and as of now it's part of a new twin system that is giving me a challenge.

Specs:

Power: 7500V 30mA NST
Secondary: 10" ~910 turns of 30ga wire on a ~1.9" PVC form
Top Load: Toroids 8" x 2" and 12" x 2"
Fres: ~415.024 kHz
Primary: .163" solid copper wire .2" spacing tapped between 7 and 8 turns
Tank Cap: MMC of cheap film caps .0106uF
Spark length: 15" of hot fat streamers. It's done a LOT better with a good ground connection.

DSCF1115

Not a full-power run.
DSCF1108

The new twin system has two coils identical to this one powered by two 7500V 30mA NSTs. I'll post pictures if/when I get it working.

Thanks. I'm looking forward to learning and growing through my membership here.

MMM

modularduck

Sat Aug 28 2010, 11:48PM

Registered Member #3094 Joined: Tue Aug 10 2010, 03:12AM
Location: portland, or
Posts: 30

So here is my latest project, still needs a bit of tuning, and some upgrades to achieve maximum streamer length. It was started amlost 2 years ago when i got laid off and had a bunch of free time and various materials laying around from prior projects. I intentional made the primary oversized and its not permenantly attached to the housing so i can experiment with different top loads and also coupling hight.

I'm going to change all the wiring to much heavier gauge at some point. along with adding a fan for quenching the gap. I have noticed that on longer runs the air becomes so ionized that performance suffers. Too, Im sure a proper HF ground will help a bunch.

I want to thank 4hv and its members for all of the information to be had here.

first previous 31 32 33 34 next last

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob