The Mostek MK 5017 is an integrated circuit from the early 1970's that provides a multiplexed six-digit clock output as well as alarm functions. It was used in the Heathkit GC-1005, GC-1092A and GC-1092D digital clocks, as well the Corvus 305 calculator/clock and many other timekeeping and alarm devices.

  • MK5017 P AA - Alarm Clock
  • MK5017 P AN - Clock Radio Alarm
  • MK5017 P BB - Calendar Clock

If you have spare MK5017 chips that are gathering dust, please send me an e-mail. I can put them to good use!



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Updated September 22, 2014