The second version Tesla Coil 4-inch in diameter is driven by 4 microwave oven transformers (MOT’s) and puts out 4 foot sparks.
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A demo at a Fete at our local high school in March 2003. This was my first public display and used an 8 ft square Faraday cage constructed out of angle iron and chicken wire. The Fete had a medieval theme so the theatrics involved Merlin the magician giving a magic class demonstration. Then, using a butchers chain mail gauntlet earthed to the cage, I put my hand into the cage and turn on, giving the effect of lightning bolts coming from my hand which is close enough not to show any other streamers. The ‘lightning’ finger had a high intensity blue LED pulsating inside the gauntlet. I then disappeared and changed into a scientist lab coat and gave a more contemporary explanation and a more conventional display with sparks to the cage 3 ft from the edge of the toroid. Definitely a hands over the ears display.
Above: I need a bigger shed as I am running out of safe standing room in my high voltage shed!
Related pages
Physics Dept 4 inch coil
Tesla 6-inch
Swimming with sparks from 4 inch Tesla coil
Try something else
External links
Photo Date: 2003