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blueprints

Date1970-1979
Inventory NumberRS0323
ClassificationBlueprint
Subject
    Cultural Region
      Place of Origin
        Dimensions64 x 50 x 4 cm, 14 lb. (25 3/16 x 19 11/16 x 1 9/16 in., 6.4 kg)
        Material
          DescriptionBlueprints from Diffraction Limited, bound together between rectangular boards.
          Signedhandwritten label on front: DIFFRACTION LIMITED / A division of SAUNDERS ASSOCIATES INC / BEDFORD MASS 01730 / (about the 1970's)
          blueprints
          Diffraction Limited, Division of Sanders Associates, Inc.
          Date: 1970-1979
          Object number: RS0320
          radio frequency designations chart
          Sanders Associates, Inc.
          Date: circa 1970
          Object number: 1998-1-1688
          blueprint for kite
          Blue Hill Meteorological Observatory
          Date: 1903-1907
          Object number: 1998-1-1050c
          blueprint for Fergusson's Kite Meteorograph Model 1900, from Blue Hill
          Blue Hill Meteorological Observatory
          Date: 1900-1905
          Object number: 1998-1-1050a
          transistor switch
          Thornton Associates, Inc.
          Date: circa 1970
          Object number: 2006-1-0074
          DC power supply
          Thornton Associates, Inc.
          Date: circa 1970
          Object number: 2006-1-0073
          Decade counter, type DEC-100
          Thornton Associates, Inc.
          Date: circa 1970
          Object number: 2006-1-0071
          sine-wave generator
          Thornton Associates, Inc.
          Date: circa 1970
          Object number: 2006-1-0075