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 4140-01-461-2350
NSN 6645-01-101-4959
NSN 6240-01-019-1997
NSN 5915-01-240-1199
NSN 5835-01-171-5368
NSN 5925-01-521-2769
NSN 5910-00-696-8909
NSN 5945-01-660-8615
NSN 6320-01-039-5891
NSN 5930-01-514-1076
NSN 6645-01-210-0036
NSN 5930-00-597-5064