An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5998-01-151-1737
NSN 5835-01-355-3654
NSN 5935-01-393-6854
NSN 4140-00-913-9374
NSN 5975-01-424-6359
NSN 6645-00-845-1071
NSN 6145-01-185-7803
NSN 5960-01-143-1202
NSN 5975-01-547-3216
NSN 6610-01-115-0131
NSN 6320-01-600-5808
NSN 7035-01-469-5854