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proximity-focused tube |
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proximity-focused tube [präk′sim·əd·ē ¦fō·kəst ′tüb] (electronics) A type of image tube in which electrons are rapidly accelerated across a narrow gap, 1.5 to 3.5 millimeters wide, between the photocathode and the phosphor screen, both deposited on plane-parallel optical windows. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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