[TCML] Proudly presenting My fist coil

[SusaX2 X2 <susax2@xxxxxxxxx>]

Hi to all fellow TC enthusiasts!

Without further ado, I present to you, my first Tesla Coil:
http://www.youtube.com/watch?v=OJAVul8r7D8

very eager to hear your comments, remarks and or jokes about this one!
It's a genuine junk box coil, after watching the video, some might say it's
a coil in a pile of junk. No offence taken.

I'm a dutch mechanical engineer and slightly mad, so I guess I fit just
about in here.
I'm aware coiling is potentially very dangerous, I'm also aware coiling is
very possible.

About the coil:

The control box is plugged in a 3 phase wall socket, each fase is 220V and
16A. The power-on button actuates the 3 phase relay for the synchronous
spark gap induction motor, which is modified to salient pole operation at
3000 rpm. It has 1 pair of stationary electrodes and 12 flying brass
electrodes, but I don't think it fires on all of them.

For the power supply only 1 phase is used by the 6A Philips variac. Then I
connected an overdimensioned home made line filter,  48 uF PFC and a
ballast made from a demolished welder. This limits the current to 6,3A, so
the quad MOT stack doesn't melt my variac.

The capacitor is a SWC with 72 beerbottles, about 45 uF.
The primary is a copper ribbon pancake, tapped at the 7th turn.
The secondary is a 125mm PVC pipe with 830 turns of 21 AWG wire.
The top load is a 350x80mm and a 500x120mm toroid, both styrofoam with alu
tape and quite smooth. Best performance is with no breakout point.
RF-ground is a 3 meter steel pipe hammered into my back yard.

With the dual MOT stack, it produced 1 meter long sparks and a distinct
ozone smell. Now, with the quad MOT stack, sparks measure over 130cm and
the stench is more than alone ozone. It scrares the hell outta my wife, so
mission accomplished lol.

Greets from Holland,

Mark
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