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 6645-00-137-7699
NSN 6645-01-074-2889
NSN 5998-01-462-0750
NSN 5915-00-582-1499
NSN 6135-00-016-0071
NSN 5990-01-204-7576
NSN 5855-00-791-5000
NSN 5998-01-534-2605
NSN 5915-01-368-2895
NSN 6240-00-952-0099
NSN 2925-01-593-2542
NSN 5985-01-197-8118