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LAN_403

Tesladownunder

Sun Feb 26 2006, 12:06AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Jon Edenburg Nov 30 2004

The ARSG which runs up to 12000 RPM.

Tesladownunder

Sun Feb 26 2006, 12:10AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Cree Dec 3 2004

another run of my small coil

Tesladownunder

Sun Feb 26 2006, 12:26AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Tesladownunder Dec 5 2004

My first SSTC. I hooked up my Royer type circuit using 20A microwave oven IGBT's running on 30 V 10A. Primary is 1+1 turn of heavy Litz wire and for fun my secondary is my 18 x 48 inch 1100 turn coil. Resonant frequency is only 38kHz which is so low you could probably run it with SCR's. Spark initiates at 1/2 inch and the power arc goes to about 4 inches which is a bit like an NST in performance. Generally underwhelming though, given the secondary size.

I will update the pics if things improve. (Like running 250V interrupted with my 1200V 600A IGBT's with a proper primary setup).

Peter

1140913568 10 FT14 Sstcroyer18inch30v4751

Tesladownunder

Sun Feb 26 2006, 12:29AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Tesladownunder Dec 5 2004

The full setup. Even with this low voltage there is a fair bit of capacitative coupling to me standing this close.
Note the poorly coupled and diminutive primary.

1140913780 10 FT14 Sstcroyer18inch30vfull4751

Tesladownunder

Sun Feb 26 2006, 12:48AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Cree Dec 6 2004

i guess i might as well add my big tes here so here it is, input-15kv 30ma nst 20.4nf mmc (still way too small) not too impressive results but im happy with them(11")

Tesladownunder

Sun Feb 26 2006, 12:51AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Extreme Electronics Dec 5 2004

Maggot , Mini magnifier

Power from an OBIT 10kv @20Ma
Primary 10T 2mm speaker cable with 3x2.2nF caps in parallel (6.6nF). Spark gap , Small Rotary.
Secondary 80mm tall of 0.25mm wire 300 turns. wound on a kitchen roll former(30mm diameter), then epoxy potted to 10mm all round. (primary wound around potting), top of coil extended 40mm and potted 5mm thick, end of coil capped with toroid made from 4mm copper tube. (pool made when a "cell" leaked during potting")
Tertiary Coil 1200T over 150mm of 0.125mm wire on kitchen roll former, bottom terminated in 4mm copper tube toroid, topload plastic egg from florest taped with aluminium tape 60mm diameter 110mm tall.
Total Size 260mm tall (10")
Output Depending on configuration 8-9" arcs

More details at

Tesladownunder

Sun Feb 26 2006, 12:52AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Extreme Electronics Dec 11 2004

8"+ Streamers to air from Maggot.

Tesladownunder

Sun Feb 26 2006, 12:53AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

kv Dec 15 2004

My 3" sgtc. This was my first coil with decent performance. The secondary is wound with 10" of 23awg. Primary is a 12-turn flat spiral. The coil runs off of a 15/30 nst with three wine bottle caps, but an MMC is in the mail and on its way. At the moment, max spark is 18".

Tesladownunder

Sun Feb 26 2006, 12:55AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Pvt. Sparky Dec 25 2004

Here is a project that I need to go back to, and redesign after I get tired of the solid state stuff. This is a tube coil employing a 304TL that was completely designed wrong. The neat thing about it is that it makes up for its lack of spark length with power arcs that are hotter than the average VTTC. It's like flames comming out of the torroid! This thing is also an induction heater due to massive primary currents. The little ground screw at the bottom of the secondary got so hot that it burned the wooden support near the screw. You can see the SGTC in the bacckground. It is 60KHz lower than the VTTC, but when I ran the VTTC, some arcing was going on in the SGTC somewhere, and I could hear it. I also smelled wood burning, so I would have to move the SGTC out of the room when I ran the tube coil! My friend was getting RF burns off of everything he touched in my room. Playing with this coil is very dangerous because of all the RF radiation it produces! I worry about the possibility of a hidden fire starting somewhere.

Tesladownunder

Sun Feb 26 2006, 12:57AM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

Pvt. Sparky Dec 25 2004

Here is a pic of the output flame. That is one hot little arc!

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