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synchronous spark timer

synchronous spark timer

Inventory Number2012-1-0057
ClassificationTimer
Subject
    Maker Central Scientific Company 1889 - 2000
    User Department of Physics, Harvard University founded 1884
    Cultural Region
      Place of Origin
        Place of Use
          Dimensions14.3 × 21 × 12.7 cm (5 5/8 × 8 1/4 × 5 in.)
          Material
            Bibliography
            Signedprinted in white on front panel: Cenco / R / CENTRAL SCIENTIFIC CO. / CHICAGO, U.S.A.
            Inscribedin black marker on top: PHYSICS 12
            FunctionFor use with apparatus where a 1/2 inch spark at a definite time interval is essential...Consists of an electronic circuit employing
            Historical AttributesUsed for instruction in the course PHYS 12 at the Department of Physics, Harvard University.
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            Accessories: broken connectors (2)
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