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 5998-01-171-8914
NSN 5965-01-055-7645
NSN 6620-01-562-3862
NSN 5990-00-832-9766
NSN 5920-00-234-9002
NSN 5925-01-454-8693
NSN 6650-01-044-5431
NSN 6685-01-359-9166
NSN 5905-01-446-6478
NSN 5915-01-653-7259
NSN 5999-00-021-1426
NSN 5920-00-138-1799