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 5925-00-220-6841
NSN 5915-01-361-9136
NSN 5990-01-453-3552
NSN 6685-01-440-8749
NSN 6130-01-382-7845
NSN 5960-00-703-3208
NSN 6320-01-056-1164
NSN 4140-00-186-3062
NSN 6620-00-929-1188
NSN 5999-00-799-0657
NSN 6240-01-080-4826
NSN 5835-00-198-4936