![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
https://drive.google.com/open?id=1OL_9-W-pbsTLoF0Icw-T0GpMIVTPmCesXQ
http://www.earlytelevision.org/pdf/rayphoto.pdf Page 10
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McGee2021 wrote:i saw a book about corona discharge used to create images, but a separate mechanism for television images
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