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 5895-01-478-3727
NSN 6685-00-455-9941
NSN 5960-00-204-7506
NSN 5965-01-628-7911
NSN 5835-01-138-8622
NSN 6145-00-786-7980
NSN 5960-00-005-2424
NSN 5920-00-914-0832
NSN 6320-01-141-3791
NSN 6645-00-527-7258
NSN 6220-01-485-9737
NSN 4140-01-224-6994