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 6110-00-250-7913
NSN 5925-01-237-2501
NSN 5975-01-333-3396
NSN 2925-01-430-4206
NSN 5915-01-403-2599
NSN 5998-01-232-9416
NSN 6145-01-337-2133
NSN 5999-01-044-9293
NSN 6620-00-109-5607
NSN 5905-00-468-5947
NSN 6240-01-505-8189
NSN 5915-01-657-9803