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 5998-00-933-9979
NSN 5915-00-990-8365
NSN 5950-01-486-3932
NSN 6620-01-187-4130
NSN 6685-00-521-3284
NSN 5910-01-350-9451
NSN 5930-00-918-0676
NSN 5985-01-561-3020
NSN 5999-01-162-8362
NSN 5920-01-418-1821
NSN 6110-01-147-9175
NSN 5855-01-266-1645