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 6220-01-614-6139
NSN 5915-00-941-0339
NSN 5855-00-451-6155
NSN 6135-01-167-7604
NSN 6685-01-441-2198
NSN 5990-00-759-9305
NSN 6105-00-759-1894
NSN 5905-01-226-8298
NSN 5910-01-444-1429
NSN 5975-01-534-8211
NSN 5965-00-051-1721
NSN 6645-01-538-5041