1. No, as far as I know, nobody has made a synchronizer with an optical head. Magnasync did make outboard optical heads that would plug into a squawk box for editing; they did not have any flywheel. I never saw one in real life, only at trade shows.
2. Yes, you can run the optical head out of a projector outside the projector. Supply 4V to light the exciter lamp (a 5V power supply with two series diodes to drop the voltage is a common solution) and take the solar cell output into a microphone preamp. It will take about 40 dB to bring the signal up to line level. 3. In the seventies there were a lot of JAN projector soundheads available on the surplus market. I tried to make an editing device using one, but I found that without the proper flywheel arrangement the flutter was so high that voices were almost unintelligible, and with the proper flywheel I could not start and stop on a dime (as is needed for editing) without scratching the hell out of the film. 4. If you have a synchronizer, why do you need optical sound anyway? Just take your optical track, dub it to fullcoat, and run it in parallel with the other stuff. The miracle of mag is that it's easy to put anything you want on it any time. --scott _______________________________________________ FrameWorks mailing list [email protected] https://mailman-mail5.webfaction.com/listinfo/frameworks
