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 5920-00-925-1839
NSN 7035-01-463-3368
NSN 6620-00-555-3992
NSN 6135-01-291-6712
NSN 6685-00-401-5594
NSN 6130-00-391-8733
NSN 6685-00-835-9103
NSN 6685-01-111-8712
NSN 5985-01-461-4615
NSN 5855-01-410-8979
NSN 2925-00-238-1668
NSN 5996-01-397-6286