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 5999-00-340-1364
NSN 5999-01-435-3298
NSN 5910-00-563-5886
NSN 6645-00-230-4396
NSN 7035-00-064-7008
NSN 6145-01-578-1561
NSN 5990-00-853-7853
NSN 6130-01-543-4123
NSN 6105-01-014-4669
NSN 6130-01-422-5351
NSN 5999-01-317-4331
NSN 5990-01-443-2931