Collins ADF-60 Automatic Direction Finder Pilot's Guide. No. 523-0766578-001117, dated 10-1-75. Covers: Introduction, Features, The System (Typical), Control, Typical ADF Operations, ADF Homing, ADF Position Fixing, Time-Distance, ADF Approach, ADF Holding, Preflight Checklist, and Points to Remember. Manual is an original.