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 6620-01-025-8739
NSN 5855-00-436-3852
NSN 6610-01-613-1831
NSN 5950-01-135-5438
NSN 5998-01-513-2324
NSN 5985-00-869-6519
NSN 5855-00-832-6528
NSN 5935-01-238-7405
NSN 5910-01-420-9178
NSN 5835-01-468-0579
NSN 5998-01-188-7217
NSN 6645-00-708-8569