Installment #2

Audio and Projector Interlock Systems
Photos courtesy of Crest National Labs

The speakers are up to the task and now we need something to feed them. Assembly of the seven channel playback system begins. This dubber is going to need some work. Lots of work.

This is the original interlock system that drives the four selsyn motors for the projectors and dubber. No integrated circuits.

New electronic controls are assembled for the interlock system. Seen above, right, is the selsyn interlock drive for one of the projectors.
Dubber & Speakers Screen and Printer
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Copyright © 2001 Cinerama Adventure and AWSM all rights reserved. Created: 4/15/2001 Updated: 10/8/2002