The CTIO Prime Focus CCD: System Characteristics from 1982-1988
  The CTIO Prime Focus CCD instrument with an RCA CCD was in operation at the CTIO 4-m telescope for six years between 1982-1988. A large body of literature has been published based on CCD images taken with this instrument. We review the general properties of the now-retired PFCCD system to aid astronomers in the interpretation of the photometric data in the literature. 
Nicholas B. Suntzeff and Alistair R. Walker (Cerro Tololo   Inter-American Observatory, National Optical Astronomy Observato...