11. Photograph archive and were originally projected from 60 synchronised slide projectors mounted throughout the space. 12. For a dramatic minute the room remained dark until he clicked on a slide projector . 13. Three years ago, Hunt's sold about 85 slide projectors . 14. For the over-30 generation, the disappearance of the slide projector is the end of an era. 15. The sound of the slide projector sliced through the gallery's muted air like an executioner's blade. 16. They are used in microscopes, telescopes, cameras, slide projectors , CD players and many other optical instruments. 17. By 1956, Braun was marketing the first fully automatic tray film slide projector , the PA 1. 18. People are very passionate about slide projectors , 19. Video projectors are digital replacements for earlier types of projectors such as slide projectors and overhead projectors. 20. Originally these programs were used to generate 35 mm slides, to be presented using a slide projector .
