NSC

TIME DOMAIN AVERAGER, TIME FUNCTION DETECTOR, FFT SYSTEM COMPUTER, DIGITAL FILTER SYSTEM COMPUTER, NOISE CONTROL SYSTEM COMPUTER, ANALYZER COMPUTERS, TRANSDUCERS, RECORDERS, CALCULATORS, MICROPROCESSORS, DISPLAY TERMINALS AND UNITS, DIGITAL STORAGE DEVICES AND FILTERS, OSCILLOSCOPES, FREQUENCY TRANSLATORS, CALIBRATION UNITS, TAPE TRANSPORTS, DISC MEMORIES, ACCELEROMETERS AND PRINTERS