tL's phOTOGRAPH_oF_tHE_dAY #1153 - The Old Fashioned Way. The RCA Simplex Model E-7 Movie Projector with the Photophone Sound Attachment & the Peerless Magnarc Carbon Rod High Insensity Lamp. Built for the National Theatre Supply by Atlas Electronic served the needs of movie theatres 30, 40 & 50 years ago. Because each movie reel of film was 18-20 minutes long with an 8 second cue mark, two identical projectors were needed in the projection booth giving moviegoers the image of illusion. 6 reels later ...
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