The generator was created by an ultrasonic electric field with a voltage amplitude of 18 - 20 V, a frequency of 280 - 320 kilohertz, emitted resonantly from the open toroid (antenna). For the indicator for the flight and the adjustment of the whole, a reel of 30-40 air winding with a diameter of 50 mm and two oppositely turned on LEDs. When the resonance is good, the diodes shine most brightly, which means that in the bobbinate the air induces a voltage over 3 V and a current over 5 mA.