P-28 Phototube

P-28 Phototube

C003/3672 Rights Managed

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Credit: CHARLES D. WINTERS/SCIENCE PHOTO LIBRARY

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Caption: Phototubes are a gas-filled or vacuum tube with extreme sensitivity to light. One major use was reading optical sound tracks for projected films until photoresistors and photodiodes were developed.

Release details: Model release not required. Property release not required.

Keywords: gas filled, light sensitive, p 28 phototube, p28, photoelectric effect, photoelectric tube, phototube, tube, vacuum tube

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