[OS X TeX] [OFF] Antique AV?

[david craig]

I figure this would be the perfect crowd to see if anyone can identify 
this antique piece of AV equipment:

<http://web.lemoyne.edu/~craigda/Images/antiqueAV.jpg>

I know I've seen one of these things before.   (In fact, I think I may 
have thrown one out of our storage room a couple of years back.)   I 
can't for the life of me place a name to the technology, though.

Thanks,
David Craig


<http://www.panix.com/~dac/>