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 6320-01-089-9086
NSN 6610-01-442-3509
NSN 6105-01-169-1778
NSN 6105-01-143-2217
NSN 6620-01-594-1833
NSN 5985-01-351-2964
NSN 5950-01-328-2446
NSN 4140-00-103-9728
NSN 4140-01-307-5152
NSN 5855-01-329-6087
NSN 6320-00-405-2348
NSN 5930-00-193-7349