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 6135-01-606-0596
NSN 5915-01-398-1860
NSN 6620-01-526-2857
NSN 5895-01-548-7740
NSN 5985-01-266-7913
NSN 5998-01-026-4132
NSN 5935-00-384-3000
NSN 5998-01-497-8259
NSN 6620-00-041-3406
NSN 6650-00-061-2232
NSN 6135-00-160-7708
NSN 4140-00-699-0904