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 6685-01-580-9022
NSN 5950-01-410-8210
NSN 6135-00-851-8575
NSN 6240-01-414-3873
NSN 6650-00-879-5834
NSN 5960-01-292-8309
NSN 5945-01-509-0749
NSN 5895-01-045-3201
NSN 6130-01-069-9187
NSN 2925-01-597-9541
NSN 6135-01-558-7257
NSN 5915-01-100-3241