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 6645-01-108-7904
NSN 5895-01-310-4915
NSN 5945-01-278-3515
NSN 5905-01-650-1845
NSN 6150-00-617-1989
NSN 5925-00-521-2527
NSN 5920-00-888-7737
NSN 5930-01-350-3529
NSN 6240-01-093-0837
NSN 5996-01-044-0204
NSN 5990-01-365-3453
NSN 5895-01-514-7015