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 5996-00-681-0490
NSN 6145-00-859-2522
NSN 5905-01-516-1123
NSN 5915-01-503-9613
NSN 6135-01-054-2462
NSN 6130-01-478-2382
NSN 5895-00-947-6620
NSN 5998-01-238-7702
NSN 6110-01-269-1889
NSN 6220-00-199-3453
NSN 5960-01-429-5897
NSN 5895-00-112-2891