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Image Not Available for CHSI geiger counter
CHSI geiger counter
Image Not Available for CHSI geiger counter

CHSI geiger counter

Date2018
Inventory Number0002-3-2018
ClassificationSign
Subject
    Maker AMSCO Products, Inc. 1923 - circa 1930
    Maker Sylvania 1924-present
    Cultural Region
      Place of Origin
        Dimensions29.8 × 31.8 × 17.8 cm (11 3/4 × 12 1/2 × 7 in.)
        Material
          Accessoriesgeiger counter probe; fake white bird used in B.F. Skinner exhibit
          Credit LineDear J-F, Thank you for your leadership and guidance. Your role in rescuing Oak Ridge's heritage will be long appreciated. Ken Launie
          DescriptionThis artistic sign was made from deaccessioned, cast-off, and duplicate scientific apparatus and plain old junk provided by CHSI staff for the purpose of making a parting gift for Jean-François Gauvin in February 2018.

          The base is a REAC geiger counter with nixie tube counters, ca. 1950s. The electrical plug is a replacement, so that the instrument can be safely plugged in to watch the lights flash. The radiation probe is included with the counter, but is presently not connected.

          The CHSI sign sits on an aluminum bar attached to the upper housing of the geiger counter by means of nylon thumb screws. It is easily removable and can be displayed on its own.

          The "C" is a brass divided circle, removed from a reproduction stand supporting an authentic Troughton & Simms transit of the 1840s (which is part of the personal collection of Donald Saff and recently restored by Ken Launie). The divided circle was likely made in India in the 20th century.

          The "H" is fashioned from four things:

          (1) an AMSCO variable capacitor that served as a tuner in a 1920s radio. It came from the famous "Green Boxes" in FAE. It is aluminum with a brass rotor and stator.

          (2) an RCA vacuum tube marked "ELECTRON TUBE," manufactured in 1939.

          (3) a Sylvania radio tube, type 12SK7.

          (4) a slice of phenolic insulating material from an early 20th century electrical apparatus, marked "RECEIVER."

          The "S" consists of two black plastic pulleys, sliced and offset.

          The "I" is a plate of brass into which are inserted three microscope eyepieces. One is by Bausch & Lomb. The others are unsigned. Two are wide field.
          Signedprinted on front panel of geiger counter: REAC / LYNBROOK, N.Y. / MODEL E110 plate on back panel of geiger counter: DESIGNED AND MANUFACTURED / EXCLUSIVELY FOR REAC / BY OXFORD ENGINEERING CORP. / WELLESLEY HILLS, MASS. divided circle: unsigned variable capacitor: AMSCO / PRODUCTS [in diamond logo] / S L F / MADE IN U.S.A. on electron vacuum tube: RCA / ELECTRON TUBE / MADE IN / U.S.A. / 6-39 on vacuum tube: SYLVANIA / MADE IN U.S.A on vacuum tube: S [in triangle logo with electric bolts] pulleys: unsigned microscope eyepiece: BAUSCH & LOMB OPTICAL CO. ROCHESTER N.Y.
          Inscribedprinted on back panel of geiger counter: MODEL E110 / SERIAL 257 / 105-125 V. / 60 CYCLES on top of Sylvania vacuum tube: 12SK7 / GT / C1B
          Curatorial RemarksDear Jean-Francois, We will miss your creativity, good management, and support for research at CHSI. Good luck in your new position! Warm regards, Sara Schechner
          FunctionTo amuse and have fond memories of working with CHSI for the last seven years.
          ProvenanceGift of the CHSI Staff to Jean-Francois Gauvin, 3/1/2018.
          Historical AttributesToward the end of the last century a newly minted scholar wrote a book on historical instruments which condemed him to work with a Collection of Historical Scientific Instruments. This Scholar exceed all expectations and brought this Collection into the next century screaming and kicking and to a better place. Thank you Professor for your kind and gentle guidence as the Captain of this ship ... you have done an Admiral job. Thank you from the inner Tube.
          Geiger counter
          Harvard Cyclotron Laboratory
          Date: circa 1948
          Object number: 2003-1-0307
          Soleil cuff type microscope
          Jean Baptiste François Soleil
          Date: n.d.
          Accessories: eyepiece cap; frog plate; hoder only for stage forceps; scalpel; steel needle; tool holders (2)
          Object number: 1280
          Harvard Project Physics pulse divider
          Damon Engineering, Inc.
          Date: 1962-1972
          Object number: 2006-1-0085
          tripod, with brass footplate for dumpy level
          Accessories: tapered mahogany case with brass hooks and hinges, and felt protectors; dumpy level foot plate; dumpy level in mahogany case with tripod mount, additional eyepiece, magnifier, and adjustable mirror
          Object number: 5208b
          wheel barometer
          Nolcini and Moretti
          Date: 1830-1865
          Object number: 2008-1-0002
          composite image of front and back of the medal
          William Wyon
          Date: dated 1851
          Accessories: dark brown leather case with two small bronze hook fastenings and royal blue velvet lining
          Object number: 1998-1-1362
          vacuum tube sockets
          Western Electric Company
          Date: 1920-1955
          Object number: 1997-1-0067b
          Zeiss stand Ia laboratory compound microscope
          Carl Zeiss, Optische Werkstätte, Jena
          Date: circa 1885
          Accessories: objectives (4): A, C, F, and DD; 1 ocular: 5; small-parts box with ocular micrometer case; key; Abbe drawing camera in separate box (1125c); box to hold objectives; standing case.
          Object number: 1125
          Curta Type II calculating machine
          Contina AG
          Date: circa 1960
          Accessories: instruction booklet; "Mathematical Handbooks" (2); copies of invoice (2); photocopy of the envelope in which David Wheatland acquired the materials (the original was destroyed in 1997)
          Object number: 1990-5-0025
          four glass-lined saccharimeter tubes
          American
          Date: 1910-1930
          Object number: 1997-1-1489
          Geiger tube
          Kenneth T. Bainbridge
          Accessories: key to open the can is taped to the top.
          Object number: 2004-1-0421