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 4140-01-634-0330
NSN 4140-01-044-7993
NSN 6130-01-461-3145
NSN 5930-01-270-9264
NSN 5990-00-140-1159
NSN 5925-01-202-8280
NSN 6145-01-391-5148
NSN 5998-01-430-2773
NSN 4140-01-350-4724
NSN 6145-00-840-6685
NSN 5999-01-306-5524
NSN 5895-01-332-1666