This is a Rockwell Collins 277-0679-010 crystal controlled oscillator.
Specifications:
-External DC operating voltage: 6.0 min., 9.0 max.
-Operating control method: automatic
-Connection type: bottom pin
-Frequency per Channel: 10.0 megahertz
***MPN 277-0679-010
***OEM Rockwell Collins
***SKU*** 13237



