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ARSCLIST August 2012
Subject:
voca-film technology
From:
Art Shifrin <[log in to unmask]>
Reply-To:
Association for Recorded Sound Discussion List <[log in to unmask]>
Date:
Thu, 2 Aug 2012 07:52:23 -0400
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Does anyone on this list know if the disks' tones were simply cues for the operator to advance the slides, and or, if a frequency-tuned circuit triggered the next slide? Shiffy
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