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 5895-00-105-2941
NSN 6130-01-239-9325
NSN 6685-00-940-0852
NSN 6320-00-089-9426
NSN 4140-00-865-3296
NSN 5855-00-791-5000
NSN 6685-01-164-3344
NSN 6610-01-099-0303
NSN 7035-01-408-6802
NSN 5920-01-519-7926
NSN 5960-01-578-5537
NSN 5945-01-160-7704