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Service Manual Stepper 1765

Product 41 of 45

Service Manual and Parts List for the R.O. receiver unit 1765 - all diagrams of sequences are included.

  • General information
  • Selection made, receiver receives first pulse
  • Letter step switch arms advance, No. 1 and No. 2 timing relays energize
  • End of first pulse
  • Letter step switch sequence completed
  • First train pulse completed, timing relay no. 1 relaxes
  • Receiver receives second train of pulses
  • Number step switch arm advances, second train pulse ceases
  • Write-In motor stops, selection made
  • Receiver resets
  • Wall box selection completed, phonograph selection resumes
  • Phonograph selection made
  • Receiver in use with 160 selection phonograph, selection made
  • Parts List

30 pages, spiralbound copy, text: English


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