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 6145-01-565-3201
NSN 5895-01-414-6699
NSN 5895-01-463-2728
NSN 2925-01-181-3972
NSN 5835-01-408-7576
NSN 6610-01-576-8955
NSN 6145-01-243-0123
NSN 7035-00-703-3535
NSN 6610-01-192-6478
NSN 6685-01-329-2929
NSN 6645-01-128-0895
NSN 6110-01-049-4362