Some Improvements in the Poulsen Arc Part I (A Method for Reducing the Intensity of the Magnetic Field in the Poulsen Arc. Single Voltage Peak Operation. The "Ideal" Arc)

The operation of the Poulsen Arc with only one voltage peak per period is shown to be desirable in that it permits the use of weaker magnetic fields across the arc and gives a nearly sinusoidal radio frequency current. The obtaining of one-peak operation by a suitably shaped and situated cathode cooling shoe is described and explained.