... 1-86,REFGB 10069.1-1988Measurement of airborne noise emitted by rotating electrical machinery and the noise limits--Engineering method ... be changed properly with major structure unchanged. The generators are powered by GEGO 168FA, GEGO 168FB, GEGO 170F,,GEGO 173F, GEGO ... start according to your various demands. The function of control system could be extended properly, brush and brushless are the two ...