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 6650-01-234-4378
NSN 6145-01-137-4008
NSN 6150-01-381-3638
NSN 4140-01-554-8281
NSN 6105-00-753-5369
NSN 6610-00-609-7198
NSN 5855-01-093-8202
NSN 6645-00-819-5045
NSN 5920-00-452-3889
NSN 5925-00-027-2764
NSN 5960-01-378-1729
NSN 5835-01-370-4292