Dear Jim,
Another overlap in our past. Back when I was at UCLA I helped the
Ethnomusicology dept with their filming along with synced sound. This was in
1963-64. I designed and built a crystal sync system using the newly available
RTL logic ICs. I then modified a 16mm Arri to use it to precisely drive the DC
motor because the Arri of course had a 60Hz sync generator built in that would
be fed to the Nagra for sound. I phase locked the 60Hz to the divided down
discrete 10MHz crystal oscillator I built and thus controlled the speed of the
DC motor. It worked very well. The precise 60Hz could be directly sent to the
Nagra for the sync track or a separate identical crystal controlled 60Hz source
could be right at the Nagra.
I took this to the business offices of Eclair in Hollywood and tried to get
them to buy or license my idea. They told me that this precision was
unnecessary. I was young and not business savy so I did not know to have them
sign a non-disclosure. The next year, they came out with exactly what I had
showed them.
Best Regards,
Jeffrey Pawlan
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