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    Image
    Category
    Collection
    Object type
    Material
    Date

    Early form of potassium photoelectric cell

    1927

    Western Electric photoelectric cell

    Photoelectric Cell

    Early form of potassium photoelectric cell

    1927

    Early type of photoelectric cell

    1928

    Early form of type Cs photoelectric cell

    1929

    "Arcturus" photolytic photoelectric cell

    Photoelectric Cell

    Thin sheets of slate(?) coated with photoelectric medium with zigzag scratching. Dated 17/11/16 and 20/7/16.

    Experimental Photoelectrical Cells

    Experimental ? Vacuum photocell. Sprayed interior of spherical glass with wire ring electrode with wire connections.

    Vacuum Photocell

    2.5 x 2.5cm ceramic plate with photoelectric coating. Held by two copper strips with brass terminals mounted on an ebonite base.

    Photoelectric Cells

    Small photocell 5 x 5mm across two brass blocks with insulating divider. Faced with insulation top and bottom. Mica protective window. No.709.

    Photoelectric Cells

    Early photoelectric cell, type CMG8

    Early photoelectric cell

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