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 2925-01-596-9448
NSN 6150-01-310-9031
NSN 4140-01-441-1307
NSN 4140-00-066-5433
NSN 6145-01-110-4219
NSN 5990-01-443-2931
NSN 5990-00-318-2592
NSN 5985-00-042-9420
NSN 6650-01-547-8928
NSN 6240-01-360-4352
NSN 5998-01-503-3128
NSN 5930-01-545-8854