ELEKTROSTATISK SPROEYTEPISTOL

A hand manipulable spray gun has an air turbine (37) which is driven at high speed in the order of 60,000 rpm and drives directly an alternator (38) to generate an alternating voltage in the order of 50 volts at about 1000 Hz. The output of this alternator is supplied to a step-up transformer (39) to achieve a secondary voltage in the order of 2500 volts. From here, it is supplied to a long chain series voltage multiplier (40) to increase the voltage thereof to one in the order of 55-80 kilovolts. The combination of a relatively small transformer and small capacitance of capacitors (71 to 77) in the voltage multiplier (40) establishes a direct voltage output from the voltage multiplier which has an alternating voltage ripple in excess of fifteen percent. The gun has a "wrap" efficiency comparable to 75 to 125 kV systems without the danger of using high direct voltages.