This 6 inch coil has been a dramatic performer with sparks reaching 8 feet.
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Tesla Coil 6-Inch
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Tag Archives: Sparks
Tesla Coil Made From a Single Microwave Oven
Ok, I reckon that there is not enough ingenuity and resourcefulness going on in budget coiling these days.
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Cranking a Tesla Coil
This was just a quickie to demonstrate that one can get sparks with a hand cranking a Tesla coil.
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Twin Coils with SISG Supply
This project describes building two identical Tesla coils and driving them with a solid state driver. “Continue reading” for more details and photos.
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Tesla Coil 4-Inch ver 2
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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Red Alert
Red Alert Tesla coil replicated with a real one.
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Sparkler Effects
A 5 second exposure of a sparkler attached to an electric drill.
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Tesla Tree
A 63 second exposure shows a Tesla tree of sparks for Christmas . These come from a 8 foot metal rod which acts as a rotating breakout point that is progressively raised in a spiral so sparks extend from ground level up to a high of about 18 feet. Hoping my umbrella will protect me here.
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Longest Sparks
These are the longest sparks of 11 feet that I have had with this Tesla coil on domestic power. They only happen occasionally though. (something about the 3 longest sparks looks like a T. rex).
This is a run with everything maxed out. The spark gap was running at its optimum of 400 BPS and the series blower gap was on full. I had a total of 0.11 uF of tank capacitance. I tuned things by hand and with the tuner to 36 kHz. The variac was on full and no ballast. No idea what the current draw was. I imagine 30 A plus. I have a tape measure on the ground which was only really countable in the high res photos but was set at 11 feet. The secondary winding length is 52 inches which gives a ratio of spark to secondary length of 2.3 which is fair enough.
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Photo Date: September 9, 2007
Exploding Wires
A capacitor bank dumps 3 kJ of power into an iron wire for dramatic exploding wires effects.
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