Tag Archives: kv

Strange High Voltage Water Surface Effects

Water Arc 4 Green Striated 2

Pass a lot of high voltage DC current onto deionised water and you get remarkable colourful patterns at the water surface.

                          
 As the deionised water became conductive enough to sustain a higher current , the faint and feeble spark increased to a power arc to water of about 2 kV DC eventually to the point of making the wire red hot. The first 3 photos all show interesting variation in the surface effects. The green glow is the copper from a hotter arc.

A spark playing over a magnet submerged in deionised water.

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Photo Date: 2005, 2006, 2007

Aura of Sauron

Aura of Sauron

Rings of electrical power surround a mysterious figure. A other-worldly effect created with a Tesla coil attached to a rotating suspended rod.

The Sparks of Sauron. These are not “photoshopped” and are exactly what the computer sees on a long exposure. For these a Tesla coil is mounted 11 foot (3.3 m) in the air and thae rotating rod is attached to a long beam extended out above me.

Perhaps the aura of Sauron’s ladder? (I have to climb up this to turn the rotation motor on and off)

Above:  Setup and testing. I wonder if I should have taught my kids CPR? In the 4th photo, note the elevated Tesla coil with the rotating connection above the ladder about 11 ft (3.3 m) off the ground.

                                    

My chain maille butchers glove is grounded both to the plate I am standing on (wet to improve conductivity), and to an earthed point nearby.

Next just add the Driza-Bone stockman’s riding coat, a hired dreadlocks wig, army surplus boots and you have the effect at the top. I am also wearing the chain mail glove and some cycling gloves over that so the sparks can jump onto my outstretched hand.

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Photo Date:  Sept 2, 2007

SIDAC Spark Substitute Solid State Tesla Coil (SSSSSTC)

SIDAC's are devices that break down at a certain applied voltage. Put enough of them together and you get a (sort of) spark gap.

This is my earliest use of electronics to drive a solid state Tesla coil using  SIDAC’s in place of a spark gap. It is a proof of principle coil rather than a big performer.  “Continue reading” for more details and photos.  Continue reading

Tesla Coil 6-Inch

Tesla coil 6-inch with 8 foot sparks

This 6 inch coil has been a dramatic performer with sparks reaching 8 feet.
For more details and photos: Continue reading

Tesla Coil 4-Inch ver 2

A medium 4 inch Tesla coil

The second version Tesla Coil 4-inch in diameter is driven by 4 microwave oven transformers (MOT’s) and puts out 4 foot sparks.
For more details and photos:  Continue reading