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 6145-00-390-0755
NSN 4140-01-426-8428
NSN 5945-01-545-8800
NSN 6650-01-556-3508
NSN 6220-01-246-3240
NSN 6105-00-729-9837
NSN 6240-01-509-4027
NSN 5985-01-619-9271
NSN 6320-00-456-2092
NSN 5996-01-461-3464
NSN 6645-00-925-0111
NSN 6650-01-178-5644