This bobtail guards its Tesla coil. An unanticipated Tesla coil danger. These harmless and slow moving lizards have an impressive threat display. A whimsical look at non electrical Tesla “dangers”.
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This is a long exposure of an ionic spinner with green and blue “neon” fluoro pilot lights rotating on my mini Tesla coil. It shows the corona which is the purple ring of air ionised by high voltage that drives it.
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This is a mini Tesla coil, made from odd parts from other projects and a neon sign transformer that runs from 240 V mains.
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Ok, I reckon that there is not enough ingenuity and resourcefulness going on in budget coiling these days.
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This is a multilayer Tesla Coil. It is a still uncompleted unusual Tesla project. It is a spark gap driven air cored resonant transformer, i.e. Tesla coil.
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Tesla coil in a briefcase. This is my latest easily portable mini coil which gives 2-3 inch sparks. These are great fun and are generally safe due to the low power.
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Now this was a long time ago. For a bit of silliness, I put the mini Tesla coil above on my car.
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My first TC was ‘discovered’ while running a spark spectroscopy project (above) in high school 40 years ago. This used about 10 kV from multivibrator excited dual ignition coils through 10 turns of an air cored radio coil to quench it. The other end of the 130 turn coil developed a corona visible in the dark spectroscopy room. It was a truly amazing sight.
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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