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 5920-00-171-2347
NSN 5855-01-333-0969
NSN 6240-01-350-3533
NSN 5835-00-484-1529
NSN 6240-00-415-1825
NSN 5910-00-669-4948
NSN 6645-01-447-6777
NSN 5920-01-355-3674
NSN 6685-01-444-0582
NSN 5945-01-258-5042
NSN 6685-01-201-3455
NSN 5910-01-581-3057