At about 30,000 cycles per second Dr. Clark noticed that the current began to decline, showing the resistance was now increasing. She wrote that the application of a frequency of 30 KHz at about 5 volts, can be felt by all parts of the body. The probe of a frequency counter receives frequencies from all positions, although some areas have a weaker signal than others. Evidently the current is not uniform through the body Persons with an inflammation in the body can often “feel” the zapper at that location, suggesting it is a path of low resistance, too, for the 30 KHz zapper current. Inflamed areas are negatively charged regions. Negative charges would be pulled toward the positive electrode of the zapper in 30,000 little jerks per second. Therefore a frequency of about 30 KHz (30,000 cycles per second) was chosen for the zapper, since it maximizes the current with regular zapping.
