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 5855-01-330-3669
NSN 5985-01-542-8791
NSN 5998-01-054-6195
NSN 6110-01-562-0995
NSN 6620-01-434-3675
NSN 5945-00-601-6235
NSN 5998-01-575-5259
NSN 5998-01-234-1350
NSN 5990-01-617-5156
NSN 6620-01-193-1681
NSN 6220-01-382-7997
NSN 2925-00-468-5273