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    General Electric Pliotron   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
    Photographer
    Staff photographer
    Title
    General Electric Pliotron
    Description

    General Electric Pliotron: Small glass tube with metal and plastic components; main body of the tube is tear drop in shape and tapers at the bottom into a plastic fitting that has four circular pins; inside the tube are two vertical glass rods that support a series of metal grids and small electrodes.

    Invented by Irving Langmuir in 1915, the Pliotron is the first true vacuum triode (a three electrode vacuum tube).
    Date 13 June 2007
    institution QS:P195,Q5090408
    Accession number
    Schenectady 3
    Notes Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative.
    Source Science History Institute
    Permission
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    w:en:Creative Commons
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    This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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    Science History Institute
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    copyright license

    Creative Commons Attribution-ShareAlike 3.0 Unported

    inception

    13 June 2007

    ISO speed

    511

    exposure time

    0.033333333333333 second

    f-number

    2.8

    focal length

    6.3 millimetre

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    Date/TimeThumbnailDimensionsUserComment
    current18:24, 1 November 2013Thumbnail for version as of 18:24, 1 November 2013357 × 750 (291 KB)Mary Mark Ockerbloom{{Information |Description ={{en|1=General Electric Pliotron Small glass tube with metal and plastic components; main body of the tube is tear drop in shape and tapers at the bottom into a plastic fitting that has four circular pins; inside the tub...

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    allikas: https://en.wikipedia.org/wiki/File:General_electric_pliotron_pp_schenectady_3.jpg