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 6610-01-134-4516
NSN 6620-01-633-8443
NSN 4140-01-198-5652
NSN 5835-01-200-7153
NSN 5925-01-437-5902
NSN 6685-00-525-8483
NSN 5895-00-495-7972
NSN 6685-00-998-2754
NSN 6620-00-148-9613
NSN 5965-01-012-1065
NSN 5996-01-184-2462
NSN 5990-00-734-7285