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  2. Conservation and restoration of neon objects - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    The neon tubes. Electrical components such as cords and transformers. The work's support structure. Other media included in the work. Neon tubes may partially burn out, and a conservator may identify the burned out portion of a neon artwork through use of a neon light tester, also known as a test light or voltage tester. This electronic test ...

  3. Tube tester - Wikipedia

    en.wikipedia.org/wiki/Tube_tester

    An RCA self-service tube tester on display at the Oklahoma History Center. From the late 1920s until the early 1970s, many department stores, drug stores and grocery stores in the U.S. had self-service tube-vending displays. They typically consisted of a tube tester atop a locked cabinet of tubes, with a flip chart of instructions.

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  5. Neon lamp - Wikipedia

    en.wikipedia.org/wiki/Neon_lamp

    A General Electric NE-34 glow lamp, manufactured circa 1930. Neon was discovered in 1898 by William Ramsay and Morris Travers.The characteristic, brilliant red color that is emitted by gaseous neon when excited electrically was noted immediately; Travers later wrote, "the blaze of crimson light from the tube told its own story and was a sight to dwell upon and never forget."

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  7. Field-sequential color system - Wikipedia

    en.wikipedia.org/wiki/Field-sequential_color_system

    One of these lamps is a neon tube and the other a tube containing mercury vapor and helium. By means of a commutator the mercury vapor and helium tube is placed in circuit for two-thirds of a revolution and the neon tube for the remaining third. The red light from the neon is accentuated by placing red filters over the view holes for the red image.

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