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 6685-01-426-8929
NSN 6110-01-461-8872
NSN 5998-01-126-2610
NSN 4140-00-020-1835
NSN 5998-01-492-6467
NSN 5975-00-859-9906
NSN 6650-01-588-3554
NSN 2925-01-408-6205
NSN 5925-01-360-3090
NSN 5975-01-310-8567
NSN 5945-00-173-4425
NSN 5910-01-186-2214