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 5965-01-332-0622
NSN 6320-01-347-2638
NSN 5996-00-468-1874
NSN 7035-00-312-3055
NSN 4140-00-248-6089
NSN 5925-00-286-8502
NSN 5950-00-844-5446
NSN 5895-00-244-1838
NSN 6620-00-408-5478
NSN 5945-01-581-6298
NSN 6610-01-013-4937
NSN 5945-01-056-5540