Uploaded May 2015 | Updated September 2026, 3 weeks ago

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How to make a spiral shaped primary coil for a Tesla coil, in this case my mini/small spark gap Tesla coil, along with tuning and demonstrations. Once again, I use the JavaTC calculator as a starting point and then show how to tune it.

For the webpage with the downloadable spirals for printing, go here:
rimstar.org/science_electronics_projects/tesla_coil_spark_gap_small.htm

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See also:

How to Make Tesla Coil - Small Spark Gap Tesla Coil
youtube.com/watch?v=0SaEPW_iMF8&index=2&list=PLFsZmHTZL-zmfXxstlxuJgRE9bOGobEVu

Star Trek Enterprise Model with Ion Propulsion added
youtube.com/watch?v=x5dyIIpnE0Y&index=3&list=PLFsZmHTZL-znXMyhU5jQvKsJB4zgrq3Jo

Bottle Rocket - How it Works/How to Make
youtube.com/watch?v=gtAbs8y5xkY&list=PLFsZmHTZL-zn3jrI0X0e0aRijWlyvfg8h&index=33

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Music used throughout:
Bicycle Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
creativecommons.org/licenses/by/3.0
ISRC: USUAN1100870