Copper grounding pad on handleWith this mini tesla coil the RF ground connection is made by connecting it to a copper pad on the handle.
The body of the person holding the device is used as the RF ground and the large area of copper ensures the energy is spread out to prevent RF burns.
In most Tesla Coils this would not be safe at all but this device is very low power so there is little risk of electric shock. The RF its self probably isn't too healthy though!
(功率小，人当地线也不怕)
