Cathode Ray Tubes

Cathode Ray Tubes

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Credit: NYPL/SCIENCE PHOTO LIBRARY

Caption: Two cathode ray tubes, in which there are three platinum wires fused into small glass heads. These three wires supply positive electricity while a fourth, negative, wire carries a cathode in the form of a concave mirror (a).

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Keywords: artwork, bw, cathode, cathode ray, cathode ray tube, cathode ray tubes, cathode rays, drawing, electrical, electricity, electron, experiment, historical, history, illustration, puzzle, science, vacuum

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