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Image Not Available for Program timer control panel
Program timer control panel
Image Not Available for Program timer control panel

Program timer control panel

Datecirca 1965
Inventory NumberWJ0524
ClassificationTimer
Subject
    Maker Ralph Gerbrands Company 1930 - 1994
    User B. F. Skinner 1904 - 1990
    User Department of Psychology, Harvard University founded 1934
    Cultural Region
      Place of Origin
        Dimensions18.1 × 6.5 × 3.2 cm (7 1/8 × 2 9/16 × 1 1/4 in.)
        Material
          DescriptionInstrument with black crackle finish and contacts for snap leads. Labeled in white paint, "PROGRAM TIMER / CONTROL PANEL."

          Currently mounted in instrument rack (WJ1011).
          Signedprinted on front: Gerbrands
          FunctionThis device provided timing circuits for the experiment, including time delays, access to reinforcement, or stimulus events. It replaced several relay circuits used in Skinner's earlier setups.
          ProvenanceB. F. Skinner's laboratory, Memorial Hall, Department of Psychology, Harvard University, Cambridge, MA.
          Historical AttributesUsed in B. F. Skinner's laboratory in the basement of Memorial Hall at Harvard University as part of his experiments on operant conditioning and behavioral psychology.
          Image Not Available for Pulse former for operant conditioning experiments
          Pulse former for operant conditioning experiments
          Ralph Gerbrands Company
          Date: 1960-1965
          Object number: WJ0964
          digital millisecond timer
          digital millisecond timer
          Ralph Gerbrands Company
          Date: circa 1950
          Accessories: round-base attachment Gray power cord Pair of green wires
          Object number: WJ1058
          Image Not Available for reset timer
          reset timer
          Automatic Timing and Controls Company
          Date: circa 1965
          Object number: WJ0965
          cumulative recorder
          cumulative recorder
          Ralph Gerbrands Company
          Date: 1955-1960
          Object number: WJ1229
          Three Variable Interval Timers Mounted on Ply Board, from Skinner Labs
          Three Variable Interval Timers Mounted on Ply Board, from Skinner Labs
          Ralph Gerbrands Company
          Object number: WJ1055
          cumulative recorder
          cumulative recorder
          Ralph Gerbrands Company
          Date: circa 1965
          Accessories: power cord (attached)
          Object number: 1998-1-0012
          Image Not Available for Controller module for operant conditioning experiments
          Controller module for operant conditioning experiments
          Grason-Stadler Company
          Date: 1962-1965
          Object number: WJ1014
          Image Not Available for latching relay module
          latching relay module
          B. F. Skinner
          Date: 1950-1955
          Object number: WJ1006
          Image Not Available for three-relay module
          three-relay module
          Department of Psychology, Harvard University
          Date: 1950-1955
          Object number: WJ1007
          memory drum
          memory drum
          Ralph Gerbrands Company
          Date: 1940-1960
          Object number: WJ0402
          memory drum
          memory drum
          Ralph Gerbrands Company
          Date: 1950-1960
          Object number: WJ1027
          Image Not Available for Four-relay module
          Four-relay module
          Department of Psychology, Harvard University
          Date: circa 1959
          Object number: WJ0981