An item consisting of an oscillator, amplifiers, waveform clippers, frequency dividers, and the like. It provides a series of pulses, or pulse reference frames of information relating to precise time data, that is applied to other components for purposes of synchronization and control. It may derive signals from internal circuitry, auxiliary external circuitry, or from sources such as the national bureau of standards radio station wwv. The item may include an integral register for circuit monitoring and adjustment purposes only. For items that are not compared to a standard time signal source, but are used as time bases for system triggers, synchronizing sources and the like, see generator, reference signal; generator, electronic command signals and generator, pulse.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5998-01-029-2754
NSN 5895-00-472-3985
NSN 6320-00-468-5015
NSN 6645-00-997-8645
NSN 5985-00-226-5627
NSN 5999-01-219-2831
NSN 6105-00-221-7769
NSN 5965-01-555-8775
NSN 5999-01-588-9512
NSN 6110-01-616-8037
NSN 6320-01-399-1633
NSN 6645-01-509-7326