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 5985-00-173-3545
NSN 6110-01-052-6103
NSN 5905-01-316-3871
NSN 5895-01-453-1419
NSN 5895-01-426-8942
NSN 6150-00-538-1176
NSN 5996-00-100-1238
NSN 6240-01-413-3035
NSN 6135-01-222-0703
NSN 5965-01-005-0341
NSN 6620-00-128-7980
NSN 5945-00-803-4893