Merry Christmas! This is a single photo from a Nikon D70s digital camera and is a 91 second exposure of a real functioning Tesla coil and is the result of perhaps 50 hours of preparation. It is cropped but otherwise completely untouched. It is not, repeat not, photoshopped. It does however achieve the result using special effects which I will explain.
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My first Tesla coil using a neon sign transformer with a ferrite cored secondary giving 2 inch sparks. I developed this idea with an old transformer from a dumpster which in retrospect was an old unpotted NST (neon sign transformer). I used a single static gap with a 12 inch ferrite cored coil of 11 primary and 100 turns secondary giving 2 inch sparks with 26 small ceramic capacitors with 2 strings of 13 x 10 nF at 2.5 kV each. It ran nicely for about 20 years! This photo is a mock up with most of the original parts.
I developed this from my first “Tesla coil” discovery while doing a spark spectroscopy project. Years after I made it I heard that Tesla had beaten me to that discovery by quite a few years! This photo is a mock up with most of the original parts.
It now has new life as a Jacob’s ladder.
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Photo Date: Jan 19, 2003
Some of my school friendly projects are here like this simple high voltage ignition coil setup.
I have held regular Home Open Days where I did demonstrations for people by invitation.
“Continue reading” for highlights of the many displays. 36 photos.
Steampunk night 2010. A collection of photos at my place with a group of Steampunk enthusiasts.
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