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 5910-00-952-9449
NSN 6650-01-640-9370
NSN 6645-00-255-1369
NSN 6610-00-425-7684
NSN 5985-01-070-1787
NSN 5910-01-043-6909
NSN 6130-01-422-3138
NSN 5930-00-242-2006
NSN 5965-01-364-3002
NSN 5960-01-407-1350
NSN 5950-01-011-3423
NSN 5998-01-599-7384