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 2925-01-213-6622
NSN 5985-01-371-6944
NSN 6685-01-293-7306
NSN 6685-01-462-4650
NSN 6150-01-538-7848
NSN 5910-00-024-8398
NSN 5855-01-410-8979
NSN 6145-01-244-6356
NSN 5945-01-524-6621
NSN 6650-00-197-7563
NSN 5999-00-786-9623
NSN 2925-00-004-1278