Workplace & School

Opaque projectors
These clunky devices were used to project book pages and the like.
They required very bright bulbs, and thus got very hot.
Opaque projectors

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There are 3 comments for this item.

Posted by LoyalTubist at 7:31 pm (PDT) on Sat August 27, 2016   
With these, anything you could flatten could be put up on a screen.
Posted by freddo30 at 10:29 pm (PDT) on Sat April 2, 2016   
Marvelous device ... I was an A / V boy junior year.
Posted by dtdavis2012 at 4:41 am (PDT) on Tue October 29, 2013   
...And they probably weren't cheap, either..

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