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 5975-01-429-2967
NSN 5990-01-443-2931
NSN 5960-01-120-6523
NSN 5920-01-118-5580
NSN 6145-01-613-4991
NSN 6240-01-501-7909
NSN 5950-00-331-7630
NSN 5945-01-306-9610
NSN 5925-00-933-0172
NSN 6610-01-568-5241
NSN 6685-01-207-6002
NSN 5996-01-492-9878