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 6620-01-451-3742
NSN 5998-01-199-4921
NSN 6650-01-292-7749
NSN 4140-00-789-6935
NSN 6645-01-473-9179
NSN 5985-01-385-5576
NSN 5996-01-459-8014
NSN 5855-00-014-5008
NSN 6620-00-600-9869
NSN 6240-00-079-0112
NSN 6320-00-456-2092
NSN 6130-01-632-9653