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 6685-01-216-4146
NSN 5905-01-386-7130
NSN 5930-00-307-8856
NSN 5895-01-514-0496
NSN 6650-01-415-5570
NSN 6130-00-804-8800
NSN 6135-01-046-6803
NSN 7035-01-364-8454
NSN 5925-01-592-4733
NSN 5855-01-492-6385
NSN 6130-00-938-2961
NSN 5965-01-552-0478