Gee, these tubes and chokes, this millimeter and that rotaryconverter down below-they'd done a mighty job.
2
The little rotaryconverter whirred softly; there was no chance Warriner could hear it above the noise of the engine.
3
Smith seated himself beside a huge electrical machine, a rotaryconverter which he next indicated with a jerk of his thumb.
4
The outstanding feature of the Dubilier system is the production of sine waves of musical frequency from continuous current, thus dispensing with the rotaryconverter.