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 6610-00-834-0713
NSN 6685-01-445-8939
NSN 6685-01-172-5482
NSN 5998-00-691-6070
NSN 5920-00-455-9743
NSN 5915-01-154-7331
NSN 5975-01-432-2591
NSN 5855-01-361-9787
NSN 6135-01-392-8344
NSN 5935-00-943-8431
NSN 6645-01-495-5553
NSN 5835-01-291-3201