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 6110-01-152-1097
NSN 5915-01-507-4033
NSN 6145-01-503-8534
NSN 5915-01-609-3891
NSN 5915-01-633-9845
NSN 4140-01-079-6886
NSN 6620-00-022-8056
NSN 6105-01-645-4935
NSN 5945-01-612-7148
NSN 6130-01-644-1912
NSN 5915-01-316-8326
NSN 5915-01-615-7639