[…] Super8 Sound was founded in November 1972 by Bob Doyle, with partners Jay Kirsch and Wendl Thomis. They spent three months developing an electronic servo-control circuit that would match the speed of a Sony TC800B tape recorder to a one-closure-per-frame switch in a Super-8 movie camera. …
Super8 Sound
=> http://www.dtvgroup.com/Super8Sound/
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