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 5895-01-445-5526
NSN 5905-00-890-4349
NSN 6240-00-225-9271
NSN 5905-00-792-9183
NSN 6145-01-110-4218
NSN 5975-00-505-2626
NSN 5920-01-291-5956
NSN 6645-00-192-1152
NSN 5835-00-233-6327
NSN 6650-01-598-4548
NSN 5999-01-158-1191
NSN 5950-01-112-0870