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 5998-01-246-1704
NSN 5905-01-221-0651
NSN 5895-00-269-3848
NSN 6685-01-050-8391
NSN 5855-00-797-8217
NSN 6110-01-027-5078
NSN 6145-01-055-4699
NSN 5998-01-177-4604
NSN 6110-01-282-1916
NSN 5925-00-831-8882
NSN 5950-01-584-9583
NSN 5990-01-432-4984