Staff Sgt. Donald Hoffman, 341st Missile Maintenance Squadron missile communications critical task supervisor, uses an oscilloscope to check the alignment of the read/write head of mass storage unit June 10 at Malmstrom Air Force Base, Mont. The missile communications section has its own electronics laboratory, and maintains and repairs communications systems used in Malmstrom’s 15 launch control centers and the Support Information Network to 150 launch facilities. (U.S. Air Force photo/John Turner)
John Turner
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