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 5950-01-147-3878
NSN 5975-00-661-1832
NSN 5990-01-372-6047
NSN 5975-00-854-2657
NSN 6685-01-368-1534
NSN 6105-00-256-6369
NSN 6220-01-559-2856
NSN 5855-01-100-3272
NSN 6620-01-509-8597
NSN 5920-01-032-2133
NSN 4140-01-361-2292
NSN 2925-01-577-0004