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 5835-01-588-6533
NSN 4140-01-088-6624
NSN 5999-01-491-9221
NSN 6320-01-162-5977
NSN 5998-00-225-3325
NSN 5910-00-370-2471
NSN 5985-01-140-7491
NSN 5996-01-441-5798
NSN 6220-01-537-0129
NSN 5960-01-632-6576
NSN 6135-01-583-6344
NSN 5930-01-258-5878