Tag Archives: capacitor bank

Open Day 2010

Cap Bang

For the Home Open day 2010, I got in the pool and also exploded watermelons. I had the usual array of projects set up indoors and various high voltage displays behind barriers. The Tesla coil was the highlight and double exposures under the Tesla coil were popular. There were about 70 people who came through. Maybe it was the free beer…
“Continue reading” for highlights of the displays. 3 videos and 18 photos.
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Exploding Hot Dog

Exploding Hot Dog

This is a hot dog/sausage/wiener about to be cooked from inside out. Apply 3 kJ from a pulse capacitor charged to 6 kV and the iron wire vaporises with many thousands of amps. The explosive energy is discharged in less than a millisecond.
“Continue reading” for more details and photos.
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Tesla Coil 4-Inch ver 2 components

Power control
The second version 4 inch diameter Tesla coil uses much higher power components.
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Coin shrinking one yen

Making small change. Coin shrinking a Japanese coin to half its diameter while preserving details. Bonsai for coins. You can still see the Japanese characters miniaturized on this one yen coin. “Continue reading” for the details of the huge currents involved to make small change. Continue reading