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 5998-00-398-0021
NSN 5915-01-503-4246
NSN 4140-00-081-6814
NSN 6610-00-190-3684
NSN 6105-00-842-2700
NSN 6105-00-265-7545
NSN 5925-01-518-8484
NSN 5835-00-632-8621
NSN 6135-01-633-8502
NSN 6610-00-168-2200
NSN 6110-01-251-3749
NSN 5945-00-834-1312