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 5920-01-075-5828
NSN 5920-00-536-1268
NSN 6610-01-076-4800
NSN 5945-01-372-7141
NSN 6220-01-174-2035
NSN 6645-01-141-0310
NSN 5998-01-565-3814
NSN 5925-01-218-4003
NSN 6240-00-290-4185
NSN 5925-00-421-0910
NSN 5930-01-136-4046
NSN 5950-01-364-6447