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 5985-01-645-1411
NSN 6650-01-481-3618
NSN 6650-00-051-1395
NSN 6130-00-504-2956
NSN 5935-00-270-1271
NSN 5920-01-340-6950
NSN 6145-01-035-4357
NSN 6620-01-412-0938
NSN 6650-01-629-9480
NSN 6220-01-571-7526
NSN 5920-01-160-6050
NSN 2925-01-267-1598