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Digital Collections

Scientific apparatus and instruments, Electronics

Lumetron Photoelectric Colorimeter Model 400-A

  • 1940s

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BY 4.0

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Electric-powered meter with instructions housed in wooden box. Movable components within box: two (2) slide glass filters (1 with red, green, and blue slides; 1 with orange, green, and blue slides); one (1) encasing to hold samples.

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  • 9.25 in. H x 14.875 in. W x 6 in. D (Open)
  • 5 in. H x 14.875 in. W x 6 in. D (Closed)
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Rights Creative Commons Attribution 4.0 International License
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  • Courtesy of Science History Institute

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Science History Institute. Lumetron Photoelectric Colorimeter Model 400-A. Photograph, 2018. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/8s45q9640.

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