Sitralux B40 (1984?)
Uses a Siemens B30 process control mini-computer as a processor, rather than the more common microprocessors. This provides more computing power, enabling individual fade times per channel.
Advert - Siemens Sitralux - The Times (November 1986)
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From Backstage Heritage Collection
Catalogue & Journal Entries for Sitralux B40 in the Backstage Heritage Collection