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 6685-01-305-8172
NSN 5910-01-571-1158
NSN 6105-00-329-4335
NSN 6645-01-082-6389
NSN 6610-01-224-3814
NSN 5999-00-789-7765
NSN 5985-00-708-2193
NSN 5950-01-069-5281
NSN 6650-01-018-7371
NSN 5930-01-324-2263
NSN 5990-01-574-2522
NSN 5905-00-246-6672