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 5905-00-312-4512
NSN 5960-01-389-9941
NSN 5945-01-435-9216
NSN 6145-01-099-2682
NSN 6610-01-398-1094
NSN 6620-01-615-0596
NSN 5985-01-578-6310
NSN 6105-00-879-9833
NSN 5996-01-400-3558
NSN 5999-00-623-3161
NSN 5915-00-644-5735
NSN 6130-01-179-1188