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 6645-01-553-8500
NSN 6110-00-626-8522
NSN 6130-01-176-9697
NSN 6320-01-323-7565
NSN 6645-01-150-9847
NSN 5835-01-185-1102
NSN 5945-00-269-5375
NSN 6145-01-188-5856
NSN 5950-01-061-6502
NSN 6645-01-168-8465
NSN 5930-00-221-0245
NSN 6320-00-300-4452