Introducing the new Heavy-Duty Model One Tesla Coil.  This coil is designed for continuous duty cycle operation.  It produces a very hot arc over six inches long.  The discharge may be safely taken to a piece of metal held in the hand.

Heavy-Duty Model One Tesla Coil showing the primary and screw-in secondary coil with phenolic insulation sleeve and a six inch aluminum toroid.  Also shown is an optional brass corona point discharge electrode.

24 inch diameter base plate of the Heavy-Duty Model One Tesla Coil.

Heavy-Duty Model One Tesla Coil 4-segment tungsten spark gap with brass cooling fins.

A 6 inch arc being drawn to a hand-held metal wrench from the new Heavy-Duty Model One Tesla Coil.