Uploaded February 2015 | Updated September 2026, 3 weeks ago

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Fun with an electric fly swatter/zapper racket, including taking it apart to show at how it works, and demonstrating it powering a Franklin's bell and making sparks. Turns out that it's a joule thief/blocking oscillator circuit.

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See also:

Franklin's Bells - How to Make and Demonstrations
youtu.be/cjlMrSlIIIQ

How to Make 30kV High Voltage DC Power Supply with Flyback & Cockcroft-Walton Multiplier Tripler
youtube.com/watch?v=GEuK1OdYxHk

How to Make Joule Thief Light a CFL - Jeanna's Light
youtube.com/watch?v=FkLET8MhRbU

How to Read a Schematic
youtube.com/watch?v=_HZ-EQ8Hc8E

High Voltage Probe How-to with Fluke 80K-40
youtube.com/watch?v=kXq4FCQ0C38

My webpage about this electric fly swatter:
rimstar.org/science_electronics_projects/electric_fly_swatter_zapper_racket.htm

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