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 6645-01-025-1002
NSN 5855-00-004-0904
NSN 6105-00-117-3966
NSN 6135-00-519-1325
NSN 5950-00-219-6537
NSN 6685-01-143-5911
NSN 6240-01-473-7989
NSN 6135-00-267-9432
NSN 6650-01-255-7996
NSN 6110-00-476-7186
NSN 4140-01-046-1530
NSN 7035-00-631-3782