Film-Tech Forum ARCHIVE: How do the US cinerma projectors keep sync?

This is topic How do the US cinerma projectors keep sync? in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Darren Briggs (Member # 1071) on 09-06-2004, 05:59 PM:

Hi all,
I was just wondering if any of you know how the Seatle Cinerama and LA's Cinerama Dome keep ther projectors in sync.
Bradford (UK) use the original system using selsyn motors,
Do the USA ones use modern techniques?

Darren

Posted by Gordon McLeod (Member # 33) on 09-06-2004, 06:06 PM:

Phill Hill speced the LA domes system and I beleive somewhere in the forums he said it was a servo type using baldor or allen bradley drives