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 5930-01-097-0211
NSN 5999-01-311-1361
NSN 2925-01-317-6973
NSN 5895-00-250-7142
NSN 6645-01-352-6583
NSN 4140-01-627-1620
NSN 6130-00-283-3718
NSN 6130-01-573-0995
NSN 6645-01-131-8122
NSN 4140-01-607-5998
NSN 5905-01-439-7644
NSN 5998-00-541-8792