A New Sound Slidefilm Projector
Sound slidefilm equipment is an audio-visual aid that is rapidly assuming its proper place in the fields of education, sales, and entertainment. This type of equipment fills in the gap between silent still pictures and sound-on-film moving pictures. The purpose of this paper is to describe the design and construction of the EXPLAINETTE “100”, a sound slidefilm unit that has been built with a functional approach to the general application of such equipment.
- Print ISSN
- 0097-5834
- Published
- 1948-01
- Content type
- Original Research
- DOI
- 10.5594/J12650
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